PgcEdit: Version history

A. = Added feature
R. = Removed
E. = Enhancement
F. = Fixed bug
W. = Workaround
H. = Housekeeping modifications

9.3 (March 22, 2010)
 - Main window and commands list:
   A. The Dead commands that cannot be executed due to unconditional jumps or
      gotos are now highlighted in purple in the commands pane (if the Highlight
      Gotos and Errors option is enabled.)
   E. A GOTO was not renumbered when its target was deleted.  Now, it is
      renumbered so that it points to the first command following the group of
      deleted commands.
   F. Backward GOTO targets were often wrong after a copy/paste operation, and
      when GOTO commands were appended to a scratchbook section.
   E. Right-clicking on the Copy button in the main window does a Copy As Text.
 - Search box and its result window:
   E. Added a new Tab in the Search results window, to see only the commands.
      Useful for example to check which value a GPRM can have.
      You can double-click on a line of the Summary tab of the Search window to
      search for that particular command, and return to the previous search with
      the new Previous button. It is also possible to save the summary and to
      copy it to the clipboard.  Thanks to M_Knox!
   E. The "Most Recently Used" contextual menu of the Search box included dupes
      when a leading or trailing space was included or when there were upper /
      lower case differences. Now, the "almost dupes" are automatically removed.
 - PGC Editor:
   E. Improved the tooltip of the NextPGCN pink link in menus.
   F. PUOs Editor: It was not possible to input a value for the PUOs editor when
      it was launched from the PGC editor.
   A. PGC Editor -> Subpicture Colour Lookup Table -> Import: Added the VobSub
      index files (*.idx) to the supported CLUT formats.
      (Note that the conversion from YCrCb to RGB is not always accurate.)
   F. Pgc Editor -> Cell Type Flags editor: Now, the user cannot set the Angle
      and Interleaved Allocation flags in a menu.
   A. PgcEditor -> Create New Cell: New option to copy all cells of a VOB in one
      operation.
   F. When the first 16:9 cell was created in a menu domain, the letterboxed or
      pan&scan flag was not automatically set in the domain stream attributes.
      Now, the letterboxed flag is forced by default.
 - Menu Editor:
   E. MAJOR IMPROVEMENT!  It is now possible to edit all button positions for
      all groups at the same time:
      * The position values are now automatically computed for the groups that
        are not currently displayed.
      * The pseudo-group "All" is now a checkbox.  When it is ticked, the user
        can edit all groups at the same time, including the positions of the
        buttons.
      * The group radiobuttons are now used only to select the group to display
        in the viewer, or the group to edit when the All checkbox is not ticked.
      * The new All checkbutton is highlighted in RED when there are parameter
        differences in the groups of the CURRENT button.  It is still pink when
        there are differences in the other buttons.  The tooltip of the All
        button now contains the list of the group differences for all buttons.
      * The button position sliders are now highlighted in yellow when there is
        a notable position difference in the different groups, as it might be
         better to edit the button positions in each group separately.
      * New dialogue when the user quits the editor with OK and there are button
        parameter differences in the groups (except for the positions).
   E. MAJOR IMPROVEMENT when creating a new cell with buttons, so that the
      highlight of the new button is now visible by default. The new cells can
      now easily be used as a basis for simple still menus, with the help of
      VobBlanker and DVDSubEdit:
      * When the FIRST button is created in a cell of a 16:9 domain and the user
        selects the option to create 2 (or 3) groups, and there is no subpic
        decoding stream defined in the PGC, PgcEdit now creates a stream with 2
        subpics: subpic 0 for the wide display mode, and subpic 1 for the
        letterbox AND pan&scan modes.  It is therefore possible now to edit the
        button highlights of 2 groups independently with DVDSubEdit. (Note that
        3 groups are still not, and will probably never be supported.)
      * When a new button is created, colour scheme 1 is now assigned by default
        to the button, instead of colour scheme 0 (usually transparent).
      * When a new dummy PGC is created, PgcEdit now uses its own CLUT instead
        of the Muxman default CLUT. As a consequence, when the first button is
        created and the original colour scheme is still undefined, the default
        colour schemes created will be different to those created by previous
        versions of PgcEdit.   Colour scheme 1 (the default) is special, as none
        of the 4 colours are fully transparent, to ensure that the highlight of
        the buttons created by PgcEdit will be visible anyway.
      * When the first button of a cell is created and the current colour scheme
        has not yet been defined and is still full transparent, a default colour
        scheme with reasonable values is created automatically.
      * **** DON'T FORGET TO VERIFY THE NEW BUTTONS WITH A GOOD PLAYER! ****
   A. New functions in the Edit menu "Clear all adjacent button links",
      "Automatically link buttons (numerically)" and "Automatically link buttons
      (by position)" to let PgcEdit clear or set the adjacent button links
      automatically.  The Automatically Link functions fail in some cases,
      notably when there are auto-activating buttons, therefore a verification
      function "Verify Buttons Accessibility" has been added to check if all
      non-hidden buttons can be accessed with the remote from all non-auto
      activating buttons.  This function is automatically called at the end of
      the Automatically Link Buttons processes and when the user OK the editor.
   N. New "Paste and Increment" functions in the Edit menu to paste a command
      and automatically increment some of its parameters.  A simplified version
      "Paste and Increment JumpVTS_PTT" is designed to fill the commands of the
      chapter menu buttons.  See the help in the Edit menu of the editor.
   F. When importing or copying a whole menu, the number of numerically
      selectable buttons was sometimes wrong. 
   F. The number of buttons was not updated in the list of cells of the menu
      viewer when the editor was closed.
 - Menu Viewer and Editor:
   E. It is now possible to select the adjacent buttons of the auto-activating
      buttons with Control+Cursors.  (A real player does not allow this with
      its remote.) 
   E. It is now possible to select the previous or next button with the keyboard
      shortcuts Control+P and Control+N.  Tooltips added.
 - File menu:
   F. Open DVD: Fixed some bugs when fake PGCs and LUs are automatically removed
   F. File -> Recent DVDs: some DVDs were shown twice in the list.
   E. Find BOVs: Improved the method to find all BOVs when the option to Scan
      Only One VOBU Every N VOBUs is high and the cell is relatively small.
   F. Find BOVs: After having scanned a short cell, the scan of the remaining
      cells was very slow.
   F. New DVD: the commands added immediately after New DVD to the FP-PGC were
      lost, and the Jump To Title 1 command was not highlighted.
   A. New function File->Menu Buttons & BOVs->"Export and convert PAL <-> NTSC"
      to convert the position of the buttons from PAL to NTSC or vice versa
      during the export operation. The file can be imported in a converted DVD.
 - Edit menu:
   A. New Edit function "Dupe and Increment" to duplicate several commands at
      once and automatically adjust their parameters.  Useful to create long
      lists of similar commands.  See the help in the Edit menu.
      Clicking on the Duplicate button (in the bottom of the main window) with
      the right mouse button calls the new Dupe and Increment function.
 - Trace mode:
   E. The State -> Mark Played PGCs as '<Played>' option has been replaced by
      "Mark Called/Played PGCs in Comments".  Now, a PGC is marked as Called and
      highlighted in light yellow when it has been accessed, and as Played and
      highlighted in light green when a video cell has been played. It is
      therefore easier to locate PGCs with never played video content.
   F. All Player Audio Capabilities flags were inverted in the Virtual Player
      Configuration and in SPRM(15).
      **** PLEASE VERIFY YOUR VIRTUAL PLAYER CONFIGURATION! ****
   F. A NextPGCN link not pointing to itself in a menu is now considered as
      invalid by the trace.
   F. Trace menu -> State -> Clear All Played/Called Comments and Highlights
      replaced the other comments with "-".  Thanks wencaS!
   F. The Control+Down key (shortcut to start the trace) was active even when
      the trace mode was off.
   F. It is now impossible to jump to the post or cell commands of a cell
      without buttons but with an infinite still time.  The user must now press
      a button on the remote to continue to trace.
   F. The trace was blocked when a Title PGC with BOVs and with the Button
      Select Or Activate PUO set was encountered.
   F. Fixed the hexadecimal string appearing in the Watch window.
   F. When the menu viewer was closed by an external function and not manually
      by the user, an error happened when the trace mode was closed.
 - DVD menu:
   E. Remove Useless Stuff has been greatly improved, and includes several new
      functions.  The order of the operations has also been modified.  
      * E. Clear Useless Set GPRM Commands now also converts the JumpSS_VMGM_PGC
           commands in the VMGM to simple LinkPGCN commands. 
      * A. Added PGC and DVD -> Delete All Dead Commands to remove the commands
           that cannot be executed due to unconditional jumps or gotos.  Use
           Info -> Find Dead Commands to examine the dead commands in the DVD.
      * A. New function "Delete All Dead Menubuttons" to remove the buttons that
           cannot or cannot easily enough be activated by the user due to PUO or
           too short playback time.
      * A. Added PGC and DVD -> Delete All NOPs to remove all useless NOPs (and
           move the goto targets to NOPs to the next non-NOP line.)
 - Domain menu:
   F. Delete Last PGC In Domain, when used on a PGC of a not-one_sequential
      Title often produced an error.
 - PGC menu:
   E. Kill PGC Playback, on PGCs with menu buttons or BOVs: PgcEdit tries now to
      pre-select the best button (in the best cell) to propose a reasonable
      default button to the user.
   E. When using Kill PGC Playback on a menu without VOB files, PgcEdit doesn't
      ask each time if the VOB file should be removed.  Now, it checks if there
      are still references to the VOB in the IFO, and displays the dialogue only
      when that's the case.
   E. Jump To PGC Upon DVD Insert: A new dialogue is shown when the target PGC
      is a menu so that the user can now select the longest Title for the resume
      point instead of the default resume Title. See point 12 of the guide here:
      http://www.digital-digest.com/~blutach/Jump2PGC/Jump2PGC_guide.html
 - Menu menu:
   F. After having replaced a menu domain with New Menu, it was impossible to
      create a new cell in the new menu.
   F. Change LU Language Code: It was impossible to define an "undefined" code.
   F. Menu -> New Menu bug: the menu was not usable after having cancelled the
      function.  It was necessary to reload the DVD to access the menu.
 - Title menu:
   F. Fixed partially a problem with Import Title's Intro Clip, occurring when
      the title is visited (but not played) before the main menu.
 - Info menu:
   E. When applied to a Title, Root, Audio, Subpic, Angle or Chapter menu PGC,
      Go To Calling Command now also shows the Title PGCs from which the user
      can call the entry menu PGC with the corresponding button of the remote.
   E. Go To Calling Command has now an additional pink button to warn the user
      when there are jumps to nowhere in the DVD.  The user can click the button
      to launch the Find Jumps To Nowhere GUI immediately.
   E. Go To Calling Commands (and similar functions): When the user clicks on a
      reference in the list, the focus is now automatically set to the command.
   F. Go To Calling Command crashed if the user clicked Refresh after having
      deleted the target PGC.  Now, the GUI is simply closed.
   F. Go To Calling Command bug: the "Return To Target" button did not work
      properly after having used the "Refresh" button.  Thanks to M_Knox!
 - Bookmarks menu:
   N. New Bookmarks menu.  You can now assign a bookmark to any PGC, and quickly
      jump to that PGC.  Thanks to M_KNOX for the idea and demo plugin.
      Note: the bookmarks are automatically saved and loaded with the DVD, and
      you can also export and import them.
 - Tools menu:
   E. There is now a new Contextual Help plugin, maintained by M_Knox.  It uses
      the F1 key, so the F1 key has been removed from the Tools menu.  There is
      a dialogue when you start PgcEdit v9.3 for the first time, to explain that
      you may need to reorganize the Tools menu.
 - Scratchbook menu:
   F. After having loaded a Scratchbook file in the scratchbook, the sub-menu of
      Append To Scratchbook (with the scratchbook sections) was not updated.
 - Options menu:
   A. Added the Options -> Input/Output -> Set Default Provider ID submenu, to
      force a specific Provider ID by default.
   F. Fixed a bug when the Highlight Gotos and Errors option was OFF.
 - General:
   F. Compiled with a new version of FreeWrap 6.42.4, with several fixes by
      M_Knox.  This version should fix the problems with foreign characters in
      the file and path names, and a bug under some Linux flavours.
      Unfortunately, FreeWrap 6.42 uses new Windows functions, and therefore
      **** PGCEDIT DOESN'T RUN UNDER WIN 95/98/ME ANY MORE! ****
   F. Fixed most problems with foreign characters in the file or path names.
   E. The message boxes now have a scrollbar when the text is too long to fit.
   F. Fixed a bunch of typos and non-European spellings.  Thanks to all betas!
   E. The tiny cells created by PgcEdit have now a blank subpic pack.  As a
      consequence, the size of the VOB cell is now 20KB instead of 10KB.
   F. Yes/No/Cancel dialogues: the height of some dialogues was wrong, and a bug
      occurred when the option "use_internal_dialog" was manually set to "false"
      in PgcEdit.cfg.  The icons have also been improved by M_Knox.
   E. Added "No to all" and/or "Yes to all" in some dialogues that can be shown
      many times in some circumstances.
   E. The torn off menus are now always on top of their parent windows, and they
      do not have a button in the Windows task bar any more.
   E. Improved the method to detect if the cells of a menu PGC can be played.
   E. Some cosmetic improvements (About menu, new bold or underlined text and
      clickable URLs in dialogues, ...)  Thanks to M_Knox!
   F. Workaround for a system bug when renaming the backups folders.
 - Linux specific:
   F. Menu Editor, under Linux: Fixed the error (without consequence) happening
      when the user ticks or unticks the "All" checkbox.
   F. Three bugs under Linux in the new function that displays the text in the
      standard Yes/No/Cancel dialogues and in the text viewer.  Thanks M_Knox!
   *. Unfortunately, due to an incompatibility in Wine with the new kernels, the
      preview doesn't work correctly any more under most Linux distributions.
      Let me know if you can find a workaround!

9.2 (February 16, 2009)
  E. Thanks to M_Knox, there are now nice looking new icons in the standard
     "yes/no/cancel", "please wait" and "donation reminder" dialogs.
  E. Delete Uncalled PGCs did not delete some PGCs considered as unsafe due to
     multiple sets of buttons/BOVs, even if all PGCs containing the multiple
     sets of buttons/BOVs were uncalled.
  F. Delete Uncalled PGCs deleted the uncalled PGCs that were NOT safe to delete
     due to multiple sets of buttons/BOVs when ALL uncalled PGCs were unsafe!
  E. When Go To Calling Command finds no jump to the current PGC, the PGC is now
     automatically marked as <uncalled>.
  F. Go To Calling Command: Bugs when the function was launched several times
     without closing the result window fixed by M_Knox.  Thanks!
  E. Delete PGC and Kill Playback (with option to remove the cells) in menu:
     When all remaining PGCs in the menu are dummies, PgcEdit offers now to
     delete the menu VOB file and remove the VOB tables from the IFO.
  E. Delete Uncalled PGCs improved for speed.
  E. Info -> GPRM has now an option to search for the commands containing a GPRM
     in "All", "Read" or "Write" modes, so you can now, for example, find if a
     GPRM is used in read mode only, but never initialised by a Set command.
  E. Info -> Multiple Sets Of Buttons/BOVs: added a summary with the list of all
     PGCs containing multiple sets of buttons/BOVs.
  E. Info -> Multiple Sets Of Buttons/BOVs: When the option "Command Editor ->
     Allow PgcEdit to add automatic comments in the PGC labels" is ON, the
     comment "<MBS>" is now added to all PGCs containing multiple button sets.
  F. Fixed some typos, and renamed "Exit Domain" to "Exit State".
  F. After having loaded a Scratchbook file in the scratchbook, the sub-menu of
     Append To Scratchbook (with the scratchbook sections) was not updated.
  F. Trace mode: When playing a multi-angle cell, PgcEdit was unable to identify
     the correct angle cell to play (except for angle 1), and issued a warning.
  F. Trace mode: The Menu Viewer was not closed when the user selected the GoUp
     button to resume to the Title domain (when the GoUpPGCN link = 0xFFFF).
  F. Trace mode: The Control+Arrow shortcut keys used to control the trace
     interfered with the Arrow keys shortcuts in the main window.
  E. Jump To PGC Upon DVD Insert: The explanation on how to use the function
     was not displayed any more in v9.1 when it was launched from the FP-PGC.
  F. PGC Editor: PgcEdit highlights now in red illegal values of the Prev and
     Next PGCN links in the Menu domains.
  F. PGC Editor: It was possible to use the PTT Editor on a not-one_sequential
     Title if the current PGC was a dummy (or a cell has just been created.)
  F. Load DVD: PgcEdit deleted all LUs or all PGCs in a menu domain when a LU or
     PGC was a clone of another one because its offset pointer was pointing to
     the other LU or PGC.  Now, it deletes automatically the cloned LUs, and
     prompts the user to keep or remove the cloned PGCs.
  F. Several small GUI bugs fixed by M_KNOX.

9.1 (January 3, 2009)
  F. DVD -> Clear Useless Set GPRM Commands and Info -> Find Useless Set GPRM
     Commands were sometimes erroneously considering a GPRM as useless.  Clear
     Useless Set GPRM Commands and DVD -> Remove Useless Stuff were therefore
     dangerous to use, as they sometimes cleared a useful command.
  F. DVD -> Delete Last VTS produced an error when a PGC of the last VTS was
     selected when calling this function. The VTS was not properly deleted from
     disc.
  F. Preview -> Automatically Start Preview Playback produced an error. The menu
     worked as expected though, and the bug had no consequence.
  F. With the option "Allow tearoff menus" disabled, some entries in the main
     PgcEdit menu were not enabled when a DVD was loaded.
  F. Fixed the incorrect View -> Toolbar checkmark.
  E. Title -> Title Play Map Table: The headers of the columns no longer scroll
     when using the scroll bar.
  F. A JumpSS from a VTSM to a menu in another VTS was not flagged as illegal.
  F. PUO Editor: PgcEdit was frozen after having pasted a value in the Input
     Value dialog.
  F. Trace: The trace was stopped and impossible to continue when the preview
     was enabled and the VOB files were missing.
  F. Domain Stream Attributes: The new Film/Camera flag was not disabled in
     read-only mode.
  F. Since the sources of PgcEdit are no longer publicly available, I've removed
     all references to the GPL license from the program.
  F. Fixed several small bugs.

9.0 (December 23, 2008)
GENERAL
  F. Fixed a bug that caused a crash on some PCs running Win XP or Vista when a
     system sound was played with a standard Yes/No/Cancel dialog.
  F. Since this bug might still be present on some systems, it is now possible
     to replace the system sounds with the standard bell or to use no sounds at
     all, with the Options -> User Interface -> Play Sounds submenu.
  F. PgcEdit hangs when a standard info/question/warning/error dialog is shown
     and several default sound files are missing in the Windows media folder.
  F. Tk bug fixed (not by me!)  The clipboard is no longer emptied when PgcEdit
     is closed.
  E. It is now possible to show again the dialogs that have been hidden during
     the current session by ticking Options > User Interface > Display Hidden
     Dialog Boxes During Current Session.  Previously, only the dialog that were
     permanently hidden via a "Hide this dialog" checkbox were restored.
     Note: The hidden dialogs during current session are restored automatically
     also when a new DVD is loaded (but not when the same DVD is reloaded.)
  F. Dialogs larger than the screen when they contain a very long error message.
OPEN DVD
  E. When the DVD is currently loading or saving, the operation is shown in the
     title bar.  It should not be possible any more to load or save the DVD or
     to quit PgcEdit while the current operation is still in progress.
  E. Open DVD: The frame rate of the FP-PGC is now checked and fixed if needed.
  E. Added a warning in the log when PgcEdit detects gaps in the VOB/Cell IDs
     numbering sequences of the VOB files when parsing them for menu buttons.
  E. When loading the DVD, PgcEdit can now create the first chapter in titles
     without any chapter at all.  (Fix for a DVDRemake bug)
  F. The number of titles was not initialised correctly when a DVD with only a
     VIDEO_TS.IFO file created by File -> New DVD was read.
  E. Several enhancements to load somewhat damaged or butchered DVDs anyway.
SCAN FOR BUTTONS/BOVS
  E. The buttons and BOVs are now saved in "menubuttons_new.but" each time the
     DVD is saved.  Currently, the buttons and BOVs should be scanned only once.
  E. Scan Menu Buttons and BOVs: Now, PgcEdit tries to load the buttons from its
     menubuttons.but file (in the backup folder) whenever possible, to speed the
     loading process up.  The BOVs are saved in that file only when a new backup
     is created. It is therefore recommended to enable the "Create Backup when a
     DVD is opened for the first time" input/output option.  The BOV finder will
     be opened only when PgcEdit cannot retrieve all BOVs from the backup, for
     example when the last modification date of a VOB file has changed.
     It is still possible to force the scanning of the VOB files with the new
     "File -> Find Menu Buttons" and the old "File -> Find BOVs" functions.
  E. Added the "Assume No BOVs" option in the BOV finder to assume that all
     selected titlesets (that have not yet been scanned for BOVs) have no BOVs.
     It replaces the option to scan for BOVs automatically at startup.
  E. The BOV finder is now closed automatically when the scanning ends, except
     when it is launched from the File menu or when the user aborts the scan.
  F. The color table is not saved any more in the button files. (The color table
     is loaded from the VOB anyway when it is edited.)
  F. Fixed a bug that caused an incorrect parsing of menu buttons or BOVs when
     the number of buttons is > 0 but the number of groups is 0 in the nav pack.
     When this bad authoring is encountered, a warning is written in the log,
     and PgcEdit assumes that there are no buttons.
  F. Bug in the scanning for BOVs of DVDs burned in DVD+VR format.
PREVIEW
  A. Thanks to Jeanl, the preview has now some audio support, including under
     Linux and Wine.  Currently, it can play only the AC3 and LPCM streams.  To
     enable the audio, tick Preview -> Playback Mode -> Real Time With Audio.
     In trace mode, the selected stream is the stream that you should hear with
     a real player.  In the other modes, the default stream depends on the
     option selected in the Preview -> Default Audio Stream menu.  PgcEdit tries
     to select the first AC3 or LPCM stream matching the audio language code and
     extension configured in the Trace menu > Setup > Virtual Player Setup, or
     it selects the first available AC3 or LPCM stream.
  A. The preview window has also a dropdown box to select the audio stream on
     the fly.  In Trace mode, when the user changes the audio stream via the
     dropdown menu of the preview, SPRM(1) is updated accordingly.  The dropdown
     menu is disabled when the Audio Stream Change PUO is set.  In trace mode,
     the dropdown menu acts therefore now exactly like the audio selection menu
     of a real player.
  E. The preview can now be automatically paused between the cells.  Therefore,
     the preview of a PGC now takes into account the cell still times and
     seamless flags.  (The pause is limited to a maximum of 4 seconds.)
  E. In Burn DVD, the "Preview Cell" button has been replaced by "Preview LB" to
     mimic almost exactly what happens when the playback reaches the layer break
     position: the last seconds of the previous cells are shown, then a 2 secs
     pause, and finally the Layer Break cell, with audio whenever possible.
  E. The preview can now play only the VOBUs pertaining to a specific angle, but
     Preview Full Domain VOBs still shows all interleaved cells as before.
     When previewing a multi-angle PGC, the user must select which angle they
     want to see (or all interleaved angles like before) in a new dialog.
     In trace or single cell modes, the correct angle is selected automatically.
     Preview bug: Currently, the correct angle is lost when using the seekbar or
     the <<, < or >> buttons.  The > and Cell-/+ buttons work as expected.
  F. With Automatic Preview ticked, the preview was opened when the user clicked
     with the middle or right button or double-clicked on the PGC Selector.
  F. The Preview is now closed when PgcEdit saves the DVD to avoid the "file in
     use/permission denied" bug.
MAIN WINDOW
  E. It is no longer possible to launch an action when another action is still
     currently running (except when trace mode is running.)  This should fix the
     problems of several actions being run at the same time, that caused some
     crashes due to incompatibilities.
  E. When copying and pasting commands from a menu domain to a title domain, the
     JumpSS commands are now converted automatically to CallSS, and vice-versa.
     When converting to CallSS, the resume cell parameter is always set to 1.
     A JumpSS to a VTSM menu is converted to CallSS only if its VTS parameter
     matches the VTS where it is pasted. A CallSS to the current VTSM menu can't
     be converted because the target VTS parameter of the JumpSS is undefined.
  F. Paste Replace: when there are many commands to paste and the total number
     of commands exceeds 128, PgcEdit aborts the paste operation, but it removed
     the original highlighted commands and turned off the Auto-Renumber option.
  E. Improvements in the Search box's right click menu.  Added the Most Recently
     Used sub-menu, and the First Selected Command entry.
  F. Search window: Clicking on a command that was in a VTS, LU, PGC or Cell
     that has been removed since the search generated some end-of-table errors.
  E. Some cosmetics changes, including better messages in the status bar when
     backing up a menu VOB file, and some GUI improvements under Linux.
  E. When an error message is displayed in the status bar, it is now highlighted
     briefly in red.  (Remember that you can see it in the log too.)
  E. When the user tries to use a function that requires a DVD to be loaded and
     a DVD has not yet been loaded, a message is displayed in the status bar.
  F. Problem with hotkeys not working any more should be fixed.
TRACE
  E. The utilisation of the preview has been modified in trace mode: now, the
     cells of a PGC are played without closing the preview and it is possible to
     use the virtual player buttons in the main PgcEdit window to control the
     trace when the preview is running, just like with a real player.
  A. Trace mode: The current Title, PTT, Audio, Subpic and Angle display in the
     player panel are now real menus, to simulate the menus of a real player. It
     is therefore now possible to change the current Title, PTT or streams on
     the fly unless a PUO prohibits the use of the menu.  The PTT menu is
     especially handy for skipping the preview of the majority of cells in a
     long Title.
  A. Trace mode: Added the option State -> "Mark played PGCs as '<played>'" and
     "Clear all '<played>' comments and highlights". The comments are permanent,
     and saved from session to session. Therefore, it is now possible to explore
     the DVD completely, and to find the PGCs that are called by some commands
     but never accessed in practice.
  E. Added a message when enabling the "Automatically start preview playback"
     option to explain how to close the preview window automatically after a
     user selectable delay in trace mode.
  F. Trace: The values assigned to the GPRM by a Set command after an underflow
     or overflow with the -, + and * operators, and after a division by 0 with /
     or % were wrong.  A warning is now also added to the log in such cases.
  F. Trace mode: The Next and Prev chapter buttons did not work correctly when
     used in a menu domain.
  F. Trace mode: LinkPrevPG in the first PG of a PGC and LinkNextPG in the last
     PG caused an error.  Now, LinkPrevPG reacts as LinkPrevPGC and LinkNextPG
     as LinkTailPGC, as they should.
  F. The PUO #17 "Button Select Or Activate" was ignored.  Now, the user cannot
     select any button when that PUO is set.
  F. Trace mode: The trace breakpoints were not updated when the DVD structure
     was manipulated via Remap PGCs, Remap Titlesets, Delete Last PGC, Delete
     Last VTS, Remove Menu, Remove LU and Swap LUs.
  F. Trace mode:  Fixed a bug occurring when the user does a resume by clicking
     on the Root or Title menu button of the player panel when the menu viewer
     was opened.
  F. Trace mode: When using "->> Next PB", the trace did not break after a RSM.
  F. When the default highlighted BOV (set in SPRM 8 or forced in the nav pack)
     was out of range, the trace stopped when playing the cell.  Now, a warning
     is issued, the first BOV is highlighted, and the trace continues.
  F. Trace mode: When the first menu encountered during the trace is too short
     for the user to select a button, PgcEdit doesn't show the menu viewer, but
     previously the trace stopped and it was impossible to continue the trace.
  F. The focus was lost after opening the trace mode when the watch window was
     enabled.
FUNCTIONS
  A. File -> Backups: The small ( <= 1MB) menu VOB files with buttons are now
     automatically copied as well in the backup folder when a backup is created.
  A. Added File -> Backups -> Add Menu Background Images To Backup, to add a
     PPM image of all cells with buttons or BOVs in the current backup folder.
     This way, it is possible to load the backup in PgcEdit, and see the menu
     backgrounds in the Menu Editor.
  A. Added File -> Backups -> Create ZIP Backup to create a ZIP file with the
     IFOs, menubuttons, small VOBs and user comments in the parent of VIDEO_TS.
     There is an option to add the menu backgrounds of all cells with buttons or
     BOVs as PPM images in the ZIP backup.
     The zip file can be burned with the DVD as an additional security.
     This function is available only in the standalone versions of PgcEdit.
  F. File -> Create backup: When a file cannot be copied to the backup folder,
     PgcEdit no longer tries to copy any more files, and aborts immediately.
  E. PgcEdit now scans the VOBs for BOVs after Import and Replace VTST Titles.
  F. Replace VTST Titles: the stream assignments are no longer copied from the
     original PGC.  They are now always kept as they are in the imported IFO.
  F. Replace VTST Titles: the number of chapters was sometimes incorrectly
     updated in the VMG_TT_SRPT table when more than one title was imported.
  A. New Edit function "Dupe and Increment" to duplicate several commands at
     once and automatiucally adjust their parameters.  Useful to create long
     lists of similar commands.
  A. Added DVD -> Clear Useless Set GPRM commands to convert the Set GPRM
     commands that set GPRMs that are never read to NOP or plain Link commands,
     and convert all SetGPRMMD in register mode commands to normal Set commands.
  A. Added DVD > Remove Useless Stuff to call Delete Unreferenced Cell Commands,
     Delete Uncalled TitleSets, Clear Useless Set GPRM Commands, Clear Jumps to
     Void PGCs and Delete Uncalled PGCs in one shot.
  A. Added DVD and PGC -> Delete Unreferenced Cell Commands to remove the cell
     commands not referenced in the cell table and reorder them.
  F. DVD -> Delete Uncalled PGCs deleted the uncalled PGCs and chapters of
     not-one_sequential PGCs, causing shifts in the chapters numbers.  Now, if
     a chapter of a not-one_seq title is called, the whole title is kept.
  F. Domain -> Delete Last PGC of Domain:  Added "Yes to this session" button
     to the confirmation and to the "Delete it in all LUs?" dialogues.
  E. Added the Camera/Film model in Domain Stream Attributes and Info > Streams.
  F. Domain Stream Attributes cosmetic bug: the 16:9 radiobutton was not ticked.
  E. PGC -> Kill PGC Playback now removes also the GoUpPGCN link.
  E. PGC -> Kill PGC Playback: When a menu PGC is converted to dummy, the post
     commands are copied in the pre-command area.  They are now also removed
     from the post-commands area, as they are useless and confusing.
  E. Jump To PGC Upon DVD Insert: It was not possible to reach a PGC of a not-
     one_sequential Title if the target PGC was not the entry PGC of the Title.
  E. Jump To PGC Upon DVD Insert: It was not possible to reach a dummy PGC.
  F. Clone PGC: The Prev/Next/GoUpPGCN links pointing to themselves were not
     updated in the new PGC.
  F. Bug in Menu > Select a Non-hidden Button/BOV by Default, when the PGC has
     several cells with buttons.
  F. Menu -> New Menu: The number of buttons of the menu was not initialised.
  E. Integrated the functions of the LU plugin in PgcEdit itself, in the Menu
     menu.  The plugin is now useless and no longer supported.
  E. Copy LU Commands to Other LUs (previously in the LU plugin) has been
     improved to copy also the cell command numbers, the Prev/Next/GoUpPGCN
     links, the PUOs, the CLUT, the menu button commands, adjacent links, color
     scheme numbers and auto activate flags of the buttons, as well as the
     global menu options (number of numerically selectable buttons, default
     forced highlighted and activated button and delay.)  Some of the parameters
     are copied only if the user accepts a dialog.  As a consequence, the new
     function is now called Copy LU Commands And Params to Other LUs.
  E. Integrated the function of the Time Map plugin in PgcEdit itself, in the
     Title menu.  The plugin is now useless and no longer supported.
     Also, DVD -> Rebuild All Time Maps of DVD has been moved in the Title menu.
  F. Rebuild Time Map: After a Discrepancy in VOBU End Presentation Time error,
     the VOB file was not closed if the user aborted the scan.
  E. It is now possible to hide the "Rebuild Time Map" dialog and answer Yes or
     No automatically during the current PgcEdit session.
  F. Title -> PTT (Chapter) Editor: When creating a new chapter, the new chapter
     number was wrong.
  A. Added Info -> Multiple sets of buttons/BOVs, to display the list of cells
     and PGCs containing multiple sets of buttons or BOVs.  This info is also
     displayed automatically after a successful BOV scan when the DVD is loaded,
     if multiple sets of buttons or BOVs have been detected.
  E. Info -> Menu Button/BOVs commands:  The number of buttons sets is now
     also displayed when there are several sets, and the number of numerically
     selectable buttons is also always displayed.
  E. Info -> PGC and Info -> DVD Commands: The Multiple Button Sets information
     has been added.  (Info -> DVD Commands lists only the first sets.)
  F. The DVD is no longer considered as modified after Info -> Find Uncalled
     PGCs.
  A. Added Info -> Find Unreferrenced Cell Commands.
  A. Added Info -> Find Useless Set GPRM commands to display a list of the GPRMs
     that are set but never read, and to search for the Set, SetGPRMMD, CSetCLnk
     and CSetLnk commands that initialise them.
  E. Info -> GPRMs: The GPRM Info window doesn't searches the commands in the
     unreferenced VOB cells any more.
  A. Added Info -> SPRMs, similar to Info -> GPRMs, to see the SPRMs usage count
     and search for any SPRM easily.  In addition, the Trace's SPRM break option
     can also be toggled by clicking on the first button. This dialog can also
     be opened from the command editor by right-clicking on any SPRM button.
  A. Added the hotkey Control+Shift+I to call Info -> GPRMs.
  E. Tools configuration: The argument "%l" is now substituted by the DVD label
     without any translation, and limited to 63 characters (UDF compatible.)
     "%l" can be used to pass the DVD label to ImgBurn.
     "%L" has been added and replaces the old option "%l". "%L" is substituted
     by the ISO9660 compatible label (max 32 alphanumeric upper case characters)
  E. When launching a tool with the "Save DVD before launching tool" option
     enabled and when the DVD was read from a read-only media, PgcEdit doesn't
     try to save the DVD any more.
  E. Tools -> FixVTS now verifies if the files to process are writable before
     launching FixVTS, as it crashes if it's not the case. (However, for a Title
     domain, only the first VOB is checked, and the BUPs are never checked.)
  F. It was not possible to launch FixVTS from PgcEdit on the VMGM.
  E. Added "Options -> Input/Output -> Select Explorer" to select an alternative
     file browser if you wish.  (Under Windows only.)
CMD EDITOR
  A. Added orange and yellow highlights in the cell command area and a warning
     in the status bar to show the unreferenced cell commands and cell command
     number errors.
  E. Since conditional NOP commands are not supported by some players, this is
     now considered as illegal and has been removed from the command editor.
PGC EDITOR
  E. Pgc Editor, Cells list: The seamless checkbox is now highlighted in yellow
     when it is clear but the previous cell is contiguous.
  E. PGC Editor: Added "Paste in All PGCs" option in the popup menu of the Audio
     and Subpic VOB's Decoding Streams to modify all PGCs of the current domain
     in one shot.
  F. PGC Editor:  The manual modifications in the cell table were lost after
     using Remove Cells, Create New Cell or Del Angles.
  E. Now, when a new cell is created, the menu buttons information is updated so
     that the modified VOB will not be scanned for buttons/BOVs the next time
     and the correct number of buttons is displayed in the PGC selector pane.
  F. PGC Editor -> Create New Cell:  Cloning a cell by reusing an existing V/CID
     did not work in a dummy PGC.
  F. PGC Editor -> Create New Cell:  PgcEdit tries now to set the Seamless Joint
     and the STC Discontinuity flags correctly, according to the previous cell.
  F. PGC Editor -> Create New Cell:  When an existing cell is cloned, the cell
     still time and cell command number are not cloned any more.
  F. PGC Editor:  After having used the PTT Editor to remove some chapters, the
     number of the new chapter created by Create New Cell was wrong.
  F. PGC Editor:  The DVD was marked as modified after using Remove Cells or Del
     Angles, even if the changes were aborted.
  F. PGC Editor: End of Table bug when reassigning a V/CID after having removed
     some programs by deleting cells.
  E. Since FixVTS has some bugs and cannot be used successfully to remove the
     unreferenced angle cells after having used PgcEdit's Del Angle function,
     the messages associated with this function have been modified.  VobBlanker
     works fine to remove all angles but one, and DVD Shrink can be used to
     compress the unreferenced interleaved cells with its "Still Image" method.
MENU EDITOR AND VIEWER
  E. When the user tries to edit the BOVs of a title domain that has not been
     scanned for BOVs yet, the error dialog now offers to scan for BOVs now.
  F. Menu viewer and editor: It is no longer possible to use the arrow keys to
     move out of an Auto-Action button.
  F. Menu editor: Bug when selecting group 2 of a cell initially without button:
     Cell 1 was selected instead of the current cell.
  F. Menu editor: After creating a new cell in a menu initially without a non-
     dummy cell and without a VOB, it was impossible to use the menu editor
     during the same PgcEdit session.
  F. If a VTST has no subpic, but the user forces scanning for BOVs, when the
     the DVD was reloaded, that VTST was not read automatically from the .but
     file, and it was considered as still not scanned, preventing use of the
     menu editor.
  E. Added a warning when the user edits or pastes a menu button or BOV command
     without Jump, Call, Link, RSM or Exit in an animated cell with a single set
     of buttons.  The command is also highlighted in yellow.
  E. Menu Editor: Removed the entry Hide Button -> Replace Command With NOP, as
     it doesn't work well in many cases.
  E. Removed the limitation of the number of numerically selectable buttons to
     9 buttons, as some players can handle any button number.
NEW SCRATCHBOOK FUNCTIONS
  A. Added a new "Scratchbook" menu.  It is now possible to define as many
     scratchbook sections, and group the commands in those sections.
     It is also possible to append the currently selected commands directly to
     any section of the scratchbook, or to a new section.
     See the Help menu entry for more information.
  A. Added the possibility to load a scratchbook from the command line.  You
     cannot load a scratchbook and a DVD from the command line at the same time.
     Type "PgcEdit /?" or "PgcEdit -h" to display the command line syntax.
  A. Under windows, the standalone PgcEdit executable has a new entry in the
     Options -> Install menu to associate the scratchbook files with PgcEdit.
LINUX SPECIFIC
  F. The pwd problem under Linux when PgcEdit is started from a script is
     hopefully fixed.
  E. Thanks to the latest Wine, the DirectDraw overlays are now available for
     the preview under Linux.  They are still off by default.
  TODO: Linux: There are still some important bugs or problems in Wine under
     some distributions (notably Ubuntu) preventing the preview running when it
     is launched from PgcEdit.  I'm still investigating...

8.6 (January 12, 2008)
  A. DVD -> Clear Jumps to Void PGCs, to replace the pre/post/cell commands
     jumping to void PGCs by NOPs and to clear the Prev/Next/GoUpPGCN links to
     void PGCs.  Handy to improve the efficiency of Delete Uncalled PGCs and to
     remove automatically all references to a PGC if you make it void before.
  E. PGC Editor -> Del Angles: Since it is possible to keep several angles with
     FixVTS or VobBlanker, it is now possible to leave several angles in place.
     Previously, it was necessary to delete all angles but one.
  E. PgcEditor -> Import CLUT: It is now possible to import the colors defined
     in Scenarist .SST files. The colors that are not defined are not modified.
  E. When deleting a PGC of a non-sequential Title and that deleted PGC is not
     a dummy and has chapters, the deleted chapters were always remapped to
     some remaining programs.  Now, the chapters are completely deleted when
     they are the last chapters of the title.  They are still remapped when
     they are necessary to fill gaps in the chapter table.
  E. Delete uncalled PGCs: Now, when a Title PGC cannot be deleted because the
     menu of the same VTS is still referenced, the commands of the orphan Title
     are changed to a CallSS to the FP-PGC.  This way, useless commands pointing
     to nowhere are removed.
  E. Find Jumps to Void PGCs: Added a warning with the void entry menu PGCs that
     can be called with the remote.
  E. Info -> GPRMs: Added a "Refresh" button to recompute the usage counts.
  E. Suppressed the warning displayed when a DVD is read about wrong time map
     tables then the VTS_PTT_SRPT table doesn't exist at all.
  E. Added the following hot keys:
     - DVD -> Clear Jump to Void PGCs:  Ctrl+Shift+J
     - DVD -> Delete Uncalled PGCs:     Ctrl+Shift+U
     - Info -> Find Jumps to Nowhere:   Ctrl+Shift+N
  E. Improved some error messages.
  E. When a DVD is loaded, PgcEdit checks now if the TTN number assigned to a
     title PGC is not 0, and if it is 0, it offers to assign the TTN 1 instead.
  E. When a DVD is loaded, PgcEdit checks now if all VOB files are referenced by
     the IFOs, and offer to remove the unreferenced VOB files.  This solve also
     the issue of unnecessary VOBs left after a Restore Backup operation.
  F. The number of PTTs was not updated in VMG_TT_SRPT after the use of Title ->
     PTT (Chapter) Editor.
  F. PGC Editor: the number of PGs was sometimes wrongly incremented by 1.
  F. PGC Editor and Replace VTST Titles: When the number of programs of a PGC
     was modified in the PGC Editor and then, in the same PgcEdit session, that
     VTS was replaced by another one using the option to keep the data of the
     original PGC, the number of programs was wrong, and that caused the PGC
     Editor to crash.
  F. Trace: Bug when a button or BOV command did not include a jump elsewhere.
  F. Fixed a bug occurring when the PGC comments or GPRM labels have been
     modified, the DVD Text General Name contains a character illegal in a file
     name such as ":" and the option to automatically save the user comments
     in the backup folder was not enabled.
  F. Fixed a possible bug under Vista when Roxio and Macrovision Software
     Manager has been installed.  The path to the Application Data folder was
     wrong.
  F. Fixed a possible bug with the length of the VTSI_MAT table when its
     end-byte pointer is (intentonally?) wrong.  (Thanks Michael!)
  F. DVD-Text General Name: When creating a new VMG_TXTDT_MG table, an useless
     pointer was initialised.  It is now set to 0.
  E. The standalone executable is now wrapped with freeWrap v6.3. PgcEdit should
     now start without problem under Ubuntu v7.10 Gusty.
  E. Added the possibility to specify the character encoding needed by some
     foreign systems with accented characters by defining the system environment
     variable PGCEDIT_ENCODING, or with the command line option /E=encoding or
     -e=encoding.  Specify /? or -h to see a list of the available encodings.
     The default encoding is cp1252.

8.5 (September 24, 2007)
  A. "Info -> Jumps from current VTS to VMG" and "Jumps from all VTSs to VMG".
  A. Preview option "Real Time Playback".  Enabling this option can be useful
     to slow the playback down on fast machines.
  E. Kill PGC Playback: Improved detection of the potentially dangerous cell
     commands.  As a consequence, some warnings are not displayed any more in
     some circumstances, and it is more often possible to remove the PGC cells.
  E. Import Menu: When importing a VMGM menu to a VTSM menu, PgcEdit converts
     now the Title Menu type to Root Menu, and vice-versa.  A warning is issued
     when a Subpic, Audio, Angle or Chapter menu is imported in the VMGM.
  E. The DVD is now saved automatically after Import VTST Titles, Replace VTST
     Titles, Delete Last Titleset, Import Menu and Remove Menu, to keep the IFO
     and the VOBs synchronised on disc.  An incremental backup is also made
     automatically after Import VTST Titles and Delete Last Titleset.
  E. Menu Editor: Advanced options modified slightly to be able to specify the
     currently selected button as the button to be activated automatically.
  E. PGC Editor -> Create New Cell: When the first cell is created in a menu
     domain, the user is now prompted for its aspect ratio (4:3 or 16:9.)
  E. Modified PGC Editor -> Del Angles to be able to clear the "First ILVU End"
     values from cells when the angle flags and the interleaved allocation flag
     have been cleared manually.  This makes possible to remove manually only
     some angle or interleaved cells in a PGC, and keep the other ones.
  F. PGC Editor: The coloured warnings and tooltips of the seamless joint flags
     were sometimes wrong in multi-angle PGCs.
  E. Command Editor and command disassembler: LinkNoLink requires a non-zero
     highlighted button. The editor doesn't allow entering a LinkNoLink command
     without a button any more, and the disassembly of the LinkNoLink commands
     generates now an <ILLEGAL BUTTON 0> error when the button is not defined.
  F. Delete Uncalled PGCs and Delete Uncalled VTSs: Fixed an important bug
     occurring when those functions were called after having used trace mode.
  F. Delete Uncalled PGCs: The Chapter tables were not assigned to the right
     titles when a title has been deleted before another one in the same VTS.
  F. Delete Uncalled PGCs: Fixed an error occurring when Delete Uncalled PGCs
     is invoked several times in the same PgcEdit session and needs to detete
     some PGCs in the same VTST domain each time.
  F. Trace mode: When playing a PGC in random or shuffle playback mode, the
     cells of the PGC were selected randomly instead of the programs.
  F. Trace mode: When a NextPGCN link was executed after playback of a PGC
     without post-command, the trace stopped with a Target Not Found error.
  F. Trace mode and highlighting of commands target: A LinkPGCN command in a
     title domain and jumping to another TTN was not considered as illegal.
  F. Trace mode, under Linux:  The preview options "Close and Break Trace"
     and "Blank This Cell" were not working.  PgcEdit_preview.exe v 2.6 has
     been modified to support those options under Linux.
  F. VOBU plugin: Fixed a bug in PgcEdit (introduced in v8.3) that prevented
     the selection of the start and end LBAs with the preview.
  F. Option "User Interface -> Play sounds with yes/no/cancel dialog boxes ?".
     It might be necessary to disable this option if PgcEdit hangs when
     displaying its dialogs on computers with dual core CPUs.
  F. Some little problems in Import and Export all Menu Buttons and BOVs when a
     titleset is deleted have been fixed.  The useless information about the
     deleted VTS was still saved and loaded.
  F. Create ISO, under Linux: The file save dialog to select the output ISO
     filename was not working correctly.
  F. Set Menu Type: When using Set Menu Type to modify the position of a menu
     (such as the Root Menu) the Entry PGC flag was left on the original PGC.


8.4 (June 26, 2007)
  E. Important change in Tools menu configuration: %v is now substitued by the
     file name of the first VOB of the current domain (VIDEO_TS.VOB for VMGM or
     FP-PGC, VTS_##_0.VOB for VTSM if the file exists, and VTS_##_1.VOB for
     VTST.)  Previously, %v was always substitued by the first VOB of the Title
     domain of the current VTS (VTS_##_1.VOB.)  The new syntax is needed to
     launch DVDSubEdit from any domain, with the CLI argument: -F "%p\%v"
  E. The menubuttons.but file is now created in the backup folder only when
     some buttons or BOVs have been found in the DVD.
  F. Importand bug introduced in v8.3 fixed in the Command Editor: When editing
     en existing Set command, the link sub-command was sometimes forced to
     another link.  For example Set ...; LinkPGCN 1 was forced to Set ...; RSM.
  F. A LinkNextPGC, LinkPrevPGC or LinkGoUpPGC command with its target PGCN
     being 0 was not considered as a jump to nowhere, and caused an error when
     using Find Jumps to Nowhere, Find Jumps to Void PGCs or Delete Uncalled.
  E. PgcEdit.exe for Windows is now wrapped with a patched freeWrap.exe so that
     its friendly name is "PgcEdit - IFO Editor" instead of "Tk DLL" and the
     version number of the executable is right.

8.3 (June 18, 2007)
  A. PGC Editor -> CellTimes.txt has now a new option to generate the timecodes
     in the format needed by CCE (HH:MM:SS:FF instead of HH:MM:SS.FF).
  A. Added two items in the Help menu to open online web pages on the Regular
     Expressions syntax.
  E. Select a non-hidden button/BOV by default: Better warning or info messages
     when some cells cannot be processed or do not need to be processed.
  F. When trace mode was used before Delete Uncalled PGCs or Delete Uncalled
     VTSs, the Trace failed with an error message when the DVD was reloaded.
  F. Trace: a LinkPTT command caused sometimes the trace to stop working.
  F. Remap Title Numbers and Remap VTSs (and all functions using internally
     those functions, like Delete Uncalled PGCs or VTSs) failed when a VMGM
     cell with a button command that jumps to a target that must be remapped
     was reused.  The remapping was applied twice, and the target was wrong.
  F. Replace VTST Titles: The VMG_TT_SRPT table (global Title Play Map table)
     was not updated when the titles were replaced, except when there were more
     replacing Titles than in the original DVD. However, opening the PGC Editor
     for a replaced Title had the effect to force the update of the table.
  F. Select a non-hidden button/BOV by default:  The Links to the first cell,
     PG or PTT with HL_BTN parameter were sometimes converted to GOTOs, instead
     of kept with a new HL_BTN number.
  F. Command Editor: When a Set command was selected, its optional Link command
     was LinkNoLink by default, even when this link command is illegal in the
     current domain or pre/post/cell area.  Now, the first legal link command
     is selected by default.
  F. Command Editor: It was possible to enter 0 as the TTN parameter of the
     JumpSS-VTSM command, and the illegal command was not highlighted in pink.
  F. Commands listbox: Any valid Set command with a legal RSM sub-command was
     highlighted in red in the pre/post commands areas.
  F. When some IFO/BUP/VOB file names are not in upper case on a FAT32 disc,
     they were not renamed to upper case due to an incredible Windoze bug!
  F. The PGC comments of the PGCs deleted by functions like Delete Last PGC or
     Remove Menu were not cleared, and were reused if a new PGC was created at
     the same location.
  F. The temporary files needed by PgcEdit are now created with an unique
     filename to ensure that no conflict exists with another instance of
     PgcEdit, and are usually automatically deleted after use.
  F. Under Linux, Options -> Input/Output -> Select Web Borwser did not work
     because it expected a filename with the .EXE extension.  Sorry Linux fans!

8.2.1 (May 26, 2007)
  F. Trace mode was broken when called from the Trace menu.

8.2 (May 26, 2007)
  A. Added "Menu -> Select a non-hidden button/BOV by default", a function to
     modify automatically the pre-commands of the current PGC with hidden menu
     buttons or BOVs to pre-select automatically a non-hidden button instead of
     the default hidden button.  (In the menu editor, the adjacent button links
     of the hidden buttons have been improved also to be able to select a non-
     hidden button more easily with the cursor buttons of the remote.)
  E. If an IFO file cannot be opened or has not the right identifier, PgcEdit
     tries now to open the BUP file instead.
  E. When PgcEdit cannot load any menu button or BOV because the VOB files are
     missing or corrupt, and when a "menubuttons.but" file exists in the backup
     folder, in the VIDEO_TS or in the main DVD folder, PgcEdit offers now to
     load it automatically.
  E. When PgcEdit needs to write to a read-only file, it tries now (silently)
     to set the write permission to the file before writing.
  E. Menu viewer: Added < and > buttons next to the cells selector to easily
     select the previous or next cell without having to open the dropdown menu.
     (Those buttons are not available when the Preview -> Small Size option is
     ticked, and when there is only one cell in the PGC.)
  F. Kill PGC Playback: When the PGC has buttons or cell commands and GOTOs in
     the post commands area, the GOTOs were not renumbered correctly.
  F. Kill PGC Playback: When the cells with buttons were not removed because
     there are links in the pre-commands jumping inside the PGC, and when the
     PGC has been blanked, the button command was not executed.  The button
     command is now added at the beginning of the post-commands area.
  F. Blank Out All Menu PGCs, with option to remove the VOB file:  Now, if some
     cells cannot be removed due to links to cells inside the PGC, the cells
     are not removed, and the user can choose to blank them instead.
  F. Blank Out All PGCs (under Mac OSX): The command failed because the preview
     is not available under Mac.
  F. Delete Uncalled PGCs: When a PGC with chapters was removed in the middle
     of a non-sequential title, the subsequent chapter numbers were wrong in
     the GUI.  However, the chapter table saved on disc was correct.
  F. Delete Uncalled PGCs was unable to delete the last PGC of the unreferenced
     titlesets when the option "Allow PgcEdit to add automatic comments in the
     PGC labels" was not ticked.
  F. All remapping functions (and functions using them such as Delete Uncalled
     PGCs): The trace mode is now closed automatically before applying the
     changes, as continuing to trace the modified DVD can cause bugs.
  F. Most of the search for uncalled PGCs, jumps to nowhere and void PGCs
     functions were broken in v8.1 when there is a Next/Prev/GoUp PGCN link
     pointing to a non-existent PGC.
  F. Trace: When the trace mode was opened automatically at startup and a jump
     to an non-existent PGC was executed, the trace mode crashed.
  F. Trace: The menu viewer was not closed when the trace was reset by clicking
     on the Eject icon, and it was impossible to close it manually.
  F. The output of "Info -> Menu Buttons/BOVs Commands" was incomplete if there
     is a menu domain without cells in the DVD.
  F. Fixed a little bug in automatic blanking of cells, when the cell cannot be
     added to the VOB file by PgcEdit: the error message was not displayed.
  F. Fixed some problems when computing the true end address of the tables.
  F. Fixed a little bug in autoupdate code.  The final version was considered
     lower than a beta!

8.1 (April 20, 2007)
  A. File -> Menu Buttons & BOVs -> Import/Export All Menu Buttons and BOVs.
     Can be used to save and restore all menu button and BOVs definitions of
     the current DVD.
     A "menubuttons.but" file is also automatically created in the backup
     folder each time a new backup is created.  The BOVs are NOT saved if the
     VOB files are not automatically scanned at load time.  This file is NOT
     restored automatically when the backup is restored.
     It is possible to load the buttons file even if the VOB files are not
     present in the DVD folder.
     Note: If you change the file type in the Import buttons dialog, you can
     also import a buttoninfo.txt file created by a well known program.
     However, as some important info is missing in this file, so DO NOT SAVE
     the buttons!
  A. Added Help -> Check For New Version and Options -> Startup -> Check For
     New Version At Startup? to automatically check if a new PgcEdit version
     is available and to download it automatically (and, under Windows only,
     to install it automatically.)
  A. Added DVD -> Delete Uncalled TitleSets.  This function is a lot faster
     than Delete Uncalled PGCs, but less efficient.  Use it before Delete
     Uncalled PGCs when there are many uncalled Titlesets in the DVD.
  A. Added Title -> PTT (Chapter) Editor, a new editor suitable to edit the
     chapters of not-one_sequential Titles (with chapters in several PGCs
     belonging to the same TTN.)  The old editor is still available via the
     PGC editor, but cannot be used on not-one_sequential Titles any more.
  A. Added Info -> Jumps from VMG to all VTSs.  Basically, this new function
     is identical to Jumps from VMG to current VTS, but is handy to find all
     jumps to all VTSs, and to locate the VTS that are called only once.
  A. Added Info -> Find jumps to void PGCs.  A PGC is considered void when it
     has no commands (or only NOPs), no buttons, and no NextPGC link (or when
     it is out of range.)  When a void PGC is played, the navigation stops.
  A. Added a check when loading the DVD to be sure that at least one Title is
     defined per TTN, and to create a new Title in VMG_TT_SRPT if necessary.
  E. When a DVD is opened, PgcEdit now checks if the IFO, BUP and VOB filenames
     are in upper case, and offers to rename them if necessary.
  E. The menu of the command editor is now context dependent.  The illegal
     commands for the current domain and current pre/post/cell/button/BOV
     area are now greyed out.  The last menu contains now only the valid jump
     commands for the current context, and has been renamed to "Jump to...".
  E. The illegal commands for the current domain and pre/post/cell/button/BOV
     area are now highlighted in pink in the main listbox and in the menu
     button viewer and editor. (The jumps to a non-existing PGC and the invalid
     GOTOs are now highlighted in orange instead of pink.)
  E. In the PGC Editor, the Prev/Next/GoUpPGCN links are now also highlighted
     in pink when they point to another TTN.
  E. Replaced the default system Yes/No/OK/Cancel dialogs by custom dialogs.
     This is needed primarily as a workaround for a display problem under
     Vista, but the new method has several advantages.  The user can now hide
     selectively some dialogs.  As a consequence, the Expert Mode option has
     been removed, and is now replaced by two new options in Options -> User
     Interface: Display Hidden Dialog Boxes During Current Session? and Restore
     All Hidden Dialog Boxes.
     "Open yes/no/cancel dialog boxes under the mouse pointer?" allows you to
     open those new dialogs with the default button under the mouse pointer.
     The content of the dialog can be copied to the clipboard via a right-click
     context menu.
  E. Save IFOs as: Now, the user can chose to compute the VTS sector pointers
     using the VOB files from the source folder rather than producing wrong
     pointers because there are no VOBs in the target folder.
  E. PsKill.exe is no longer necessary for Win9X users to abort the creation of
     the ISO image during the burn process.  PsKill has now been replaced by
     the kill command of the TclX package.  The (erroneous) warning about
     "potentially unwanted program" displayed by some picky antivirus should
     not occur any more.
  E. Added shortcut key CTRL-Q on Info -> Jumps from VMG to Current VTS.
  F. Kill PGC Playback: Some cell or button commands copied in pre-commands
     area were illegal in that area.  They are now replaced by a legal suite
     of several commands.
  F. Some uncalled PGCs were not found by Find Uncalled PGCs and not deleted
     by Delete Uncalled PGCs.
  F. Clone PGC: When cloning a Title PGC and NOT creating a new Title number,
     the TTN number of the new PGC was increased, and the one_sequential flag
     was not set in VMG_TT_SRPT.
  F. Fixed some rounding errors in Rebuild Time Map on long NTSC Titles. Too
     many entries were created in the table.
  F. Fixed a little problem in Rebuild Time Map.  The time map was not rebuild
     for PGCs shorter than 1 second.  Now, the time map is rebuilt anyway, but
     is empty if the PGC is really shorter than 1 second.
  F. Rebuild Time Maps: Added a check for discrepancies in the SCR time stamps
     (sometimes caused by VobBlanker when a single cell is replaced by several
     cells with different VOB IDs.)
  F. Trace: The Break command in post-commands area was not handled correctly.
  F. Little bug fixed in Trace mode: SPRM(4:Title in volume) was not modified
     when a not-one_sequential Title was entered via a non-entry PGC.
  F. Little PGC comments bug fixed:  The quotes of the PGC comment were not
     removed when a comment was erased from the PGC Editor window.

8.0 (January 23, 2007)
  E. Cell Table: The misleading "Layer Break ?" flag has been replaced by the
     more standard "Seamless Joint" flag.  It's now a direct shortcut to the
     Seamless Joint flag in the cell type editor.  Its value is the inverse of
     the old flag.  Therefore, now, the new Seamless flag should theoretically
     be CLEAR at the LB position and always clear on the first cell of the PGC.
  A. New function Domain -> Remap PGCs in domain, to reorder the PGCs of the
     current domain.  The VM commands and the Next/Prev/GoUpPGCN links are
     automatically renumbered to preserve the navigation.
     You can preview the PGCs from within the GUI.
     Removed Menu -> Swap or Copy Menu PGC, since this function is now useless.
  A. New function Title -> Re-order TTNs in domain, to renumber the TTNs of the
     current domain in increasing order.  The VM commands are renumbered to
     preserve the navigation.  This function might be needed to be able to
     delete the last PGC with Domain -> Delete last PGC in domain.
  A. New function DVD -> Delete uncalled PGCs, to delete automatically
     (almost) all useless PGCs in the DVD.  The navigation is preserved.
     Note: Since this function is potentially dangerous, use it with care!
  A. Added the User's PGC Comment field in the PGC editor, to easily type it.
  A. Pgc Editor -> Remove Cells:  New "Shorten the chapter table if needed"
     option, to silently remove the chapters at the end of the chapter table
     when they are not assigned to an existing program any more after the
     operation.  Use this option with care!
  A. PgcEditor -> CellTimes.txt: It is now also possible to save the celltimes
     file in Womble MPEG Video Wizard .MLS format.  A .MBS file can also be
     generated when necessary (when there are several VOB files in the domain.)
  A. Removed Info -> Find Unused GPRMs and added Info -> GPRMs to open the new
     GPRM Labels Editor and to list the usage count of all GPRMs.
     The labels are displayed in the VM commands and the Command Editor exactly
     like for the SPRMs. The GPRM fields in the Command Editor are now replaced
     by a dropdown menu button. Right-clicking on a GPRM menu button calls also
     the GPRM Labels Editor.  In Trace mode, added also Watch -> GPRM Labels.
     Clicking on a GPRM label in the Watch window calls also the Labels Editor.
     The GPRM labels are saved in the backup folder, with the User Comments,
     when the DVD is saved.  The menus File -> "Import/Export/Clear user's PGC
     comments" has been moved to the "Comments and Labels" sub-menu.
  A. Added File -> Recent DVDs submenu, with up to 25 entries.  The invalid
     paths are removed from the list each time PgcEdit is started.
  A. Added View -> Show Log and View -> Clear Log.  Currently, only the Load
     DVD operation is logged, to help discover the origin of a problem when
     loading a DVD.  All status bar messages are also logged.
     Clear Log clears the internal log buffer, but doesn't modify the contents
     of the Log viewer window. Opening or reopening a DVD clears also the log.
     Note: Double-clicking on the status bar opens also the log window.
  A. Added the keyboard shortcut Control+A to call Domain Streams Attributes.
  A. Trace: Added Log -> Log Filter -> PUOs Details to log each PUO separately.
  E. Trace Watch Window: it is now possible to close any sub-window from the
     watch window, and to toggle the SPRM labels and the (new) GPRM labels.
     New Watch -> All menu to enable all sub-windows and labels at once.
  E. DVD -> Remap Titlesets and Title -> Remap Title Numbers:  Added a preview,
     available also in the new Domain -> Remap PGCs in domain function.
  E. Jump To PGC Upon DVD Insert has been enhanced so that the target title and
     the resume target are no more blocked when they are entered directly from
     the exit domain with the player function to call a Title by its number.
  E. Jump To PGC Upon DVD Insert: Also, the original VM commands are completely
     removed from the First-Play PGC whenever possible, to leave a chance to
     delete the skipped PGCs with the new Delete Uncalled PGCs function.
  E. Kill PGC Playback on a menu with buttons (or BOVs) but with a non-infinite
     still time: added a "No Button!" button to kill playback without selecting
     a menu button to be simulated, to continue the navigation normally at the
     end of the playback.  DO NOT USE THIS OPTION ON A LOOPING MENU, or you
     will probably create an endless loop!
  E: Kill PGC Playback improved to avoid infinite loop in some circumstances.
  E. Menu button viewer: When the user clicks on the big button to edit the
     command and the commands are identical in all groups (or there is only one
     group), the user is not prompted any more to modify the command in all
     groups.  It is still possible to edit the commands independently when the
     original commands are different in each group, or with the menu editor.
  E. Improved warning messages when there are several set of buttons in a menu.
  E. The File menu, too big, has been reorganised with new sub-menus.
  A. Added File -> Backups -> Undo last Incremental Backup to automatically
     return one step back in the backups.  In some cases, you MUST use this
     function instead of restoring the files manually, or your DVD might be
     totally messed up.  This function checks also for FixVTS and VobBlanker
     backups, and offer to restore them manually.  Shortcut: Control+Alt+N
     The shortcut for New Incremental Backup has been modified: Control+N
  E. Restore Backup (and Restore Last Incremental Backup): The VOB files in the
     backup folder can now be copied or moved back automatically.
  E. Tools -> FixVTS: the FixVTSBackup folder is now renamed automatically when
     FixVTS is launched from the Tools menu, so that the new Undo Incremental
     Backup function works as expected when FixVTS has been used several times.
  E. Save DVD: When there are modified buttons or BOVs, the confirmation dialog
     is no longer displayed.  The buttons or BOVs are saved anyway.
  E. Title Play Map table: The user can now modify the Not-One_Sequential_Title
     flags.  Added also a button to compute automatically those flags, based on
     the characteristics of the titles (random, shuffle, more than one PGC...)
  E. Not-one_sequential_title flag in VMG_TT_SRPT:  Added checks in several
     functions to be sure that this flag does not need to be modified.  Now,
     the not-one_sequential flag is modified automatically (or in some cases
     after a confirmation of the user) to match the Title characteristics.
     The affected functions are Edit PGC, Rebuild Time Map, Delete last PGC
     in Domain, etc...  Thanks to Jsoto for the idea!
  E. After deleting or blanking a PGC, the streams attributes of the domain are
     now checked, and the user is prompted to fix them if some streams are no
     longer needed.
  E. Added Copy/Paste buttons in Domain Stream Attributes -> Audio type dialog.
  E. Added error messages in the status bar when the user types illegal
     characters in an ISO639 Language Code field.
  E. When the option to start PgcEdit in trace mode was on, the plugins were
     initialised only after the trace mode was closed by the user.  Now, the
     plugins are loaded and initialised before the trace mode is started.
  E. Improved method to load severely damaged IFO files. (Silent Hill zone 2)
  E. Find BOVs has now a new option to do a deep scan (every 1 VOBU) when at
     least one BOV has been found during the first pass and the number of VOBUs
     to skip is greater than 1.  When this option is on, it is now almost
     impossible to miss a BOV, even if the number of VOBUs to skip is high.
  E. Info -> Menu Button Commands: Added the BOVs as well in the output.
     VOB cells without buttons or BOVs are not listed any more.
  E. Info -> PGC (in title domain), and PCG Params and Cell Tables: Added the
     number of BOVs per cell in the output.
  E. Miscellaneous little GUI enhancements.  For example, it is now possible to
     switch the focus back and forth between the PGC selector pane and the cmd
     editor pane with the cursor left and right keys.
  E. Uses Tcl/Tk 8.4.12 and freeWrap 6.2 for the wrapped version.
  F. Open DVD: Crash occurring when a VTS without VTS_C_ADT table was read.
  F. The Title number of a multi-pgc Title was not assigned to the right PGC
     when the entry PGC is not the first PGC of the TTN. (Very rare situation.)
  F. The target PGC of the SetNVTMR command was ignored by the function to find
     the target of a command.
  F. Fixed some video standard and frame rate mismatches when creating a new
     VMGM or VTSM menu or the FP-PGC.
  F. Set DVD-Text General Name:  Bug when there are more than 30 characters in
     the label and the VMG_TXTDT_MG table was not defined in the original DVD.
     This bug caused ImgBurn to ignore the label.
  F. Trace: The PUOs Watch window was not refreshed after a Restore State.
  F. Jump to Calling Command and Find Jumps to Nowhere GUI: The Refresh button
     did not work.

7.4 (September 17, 2006)
  A. New function Info -> Find Never-Called PGCs, to mark the PGCs and VTSs
     that are never called explicitly (without having to clear the VM commands
     and Prev/Next/GoUp PGCNs).
  A. New function Trace menu -> State -> Restart Playback from Exit Domain, to
     begin the playback at Title 1 instead of at the First-Play PGC.
  A. New Option -> Functions -> DVD-TEXT General Name to set the max length of
     the Volume General Name string, since the number of characters that can be
     displayed on screen is player dependent.
  A. Added "%t" and "%l" substitutions in the command line string of the Tools
     Setup dialog to be able to pass the DVD-Text General Name (%t) and the
     default DVD label of the burn function (%l) as arguments.  Calling ImgBurn
     with the volume label already in place is now possible with the arguments:
     /MODE ISOBUILD /BUILDMODE DEVICE /FILESYSTEM "ISO9660 + UDF" /SRC "%d"
     /VOLUMELABEL "%l" /NOIMAGEDETAILS /ERASE /VERIFY /IBG "C:\%l.ibg"
  E. When a PGC or a cell is never called directly by a VM command or by a Prev
     Next or GoUpPGCN link, it was previously considered as unreferenced, even
     if it was referenced in some IFO tables.  Now, in this situation, the word
     "unreferenced" has been replaced by "never-called" to avoid the confusion
     with true unreferenced cells (which are never referenced in the IFOs.)
  E. Rebuild Time Map functions: the cell times and the PGC playback time are
     now updated also in the VTS_PGCITI table.  Therefore, after using this
     function, the times shown in the PGC Editor should be accurate.
  E. Create New Cell and Reassign VOB/Cell ID: New option to rebuild the time
     map tables.  It is now possible to skip the Time Map creation.  Useful to
     speed up things when using those function several times.
  E. The error message "Can't create backup" is not displayed any more when the
     DVD is loaded from the DVD drive, and is therefore read-only.
  E. Improved Read DVD functions, to cope with some severe authoring errors.
  E. Added a note in the Check DVD-R Size dialog to warn the user that this
     function ignores the DVD-ROM files in the computation of the DVD size.
  E. The position and size of the PGC Editor window is nor remembered from
     session to session, and the window is not resized any more when the cells
     list is refreshed.
  F. Trace mode: SPRM 20 (Player region code) was wrongly initialised with the
     region code value of VMGM_MAT instead of a bitwise XOR of this value.
  F. Trace mode:  In case of arithmetic overflow in Set operations, the result
     was rounded to 0 or 0xFFFF.  Now, the right value, not rounded, is used.
  F. PGC Editor -> remap VOB/Cell ID did not work on a menu PGC if the VOB file
     was not successfully scanned for menu buttons when the DVD was opened, for
     example because the menu VOB file was not present or was CSS encrypted.
     Similarly, Remove Cell did not update the PGC playback time.
  F. When a menu PGC was killed and the video removed, the audio and subpic
     attributes were not cleared in the PGC.
  F. Kill playback: a warning was sometimes issued when it was not needed.
  F. Little bug fixed when PgcEdit was called with an invalid path as CLI arg.

7.3 (June 26, 2006)
  F. During the trace, when a menu was displayed, hitting the Prev, Next or
     GoUp button on the virtual remote had no effect.
  F. PGC Editor -> Create New Cell -> Create New Blank VOB Cell did not create
     a new cell if a tiny black cell previously created by PgcEdit was already
     present at the end of the VOB file.  Instead, the tiny cell was reused.
  F. When using Create New Cell -> Use existing VOB/Cell ID, the cell ID number
     was always 1.
  F. When using Create New Cell on a non-sequential Title PGC (with several
     PGCs in the same TTN) and the option to create a new chapter, the new
     chapter number was wrong.
  F. When using New Dummy PGC on a Title PGC, the modified Title was not marked
     as non-sequential in the VMG_TT_SRPT table.
  F. When using Delete Last PGC in the Title domain to delete the penultimate
     PGC of a non-sequential Title (played sequentially), the Title was not
     marked as sequential in VMG_TT_SRPT.  Its time map is now also recomputed
     when the DVD is saved.

7.2 (June 15, 2006)
  E. When the VMGM_VOBU_ADMAP table is present but has 0 entries, the table is
     now completely removed when the DVD is loaded.  Previously, only the empty
     VMGM_C_ADT, VTSM_C_ADT and VTSM_VOBU_ADMAP tables were removed.
  F. Burn DL DVD: When the new advanced option "Modify IFOs only" is ticked and
     PgcEdit cannot find a suitable cell for the layer break, the GUI was not
     updated correctly, and it was impossible to close the Burn window.
  F. The highlight target feature and the Find Jumps to Nowhere function were
     unable to mark a JumpTT to an nonexistent title as invalid.
  F. It was possible to save the DVD or quit PgcEdit when a save operation was
     already in progress.  Now, only File -> Kill can be used during the save.
  F. PGC Editor: Remap Vob/Cell ID when using the Create New Cell option was
     broken in v7.1.
  F. The dynamic version of the PgcEdit_preview executable was distributed with
     v7.x.  To work correctly under Linux, the static version is needed.

7.1.2 (June 2, 2006)
  F. The Kill Playback function was broken.
  F. Burn DVD:  The Creation of the ISO was broken on some systems.

7.1 (June 2, 2006)
  A. Burn DVD:  New "Seamless Layer Break" option in the Layer Break selection
     dialogue, allowing to set the seamless flag of the LB cell. Theoretically,
     the Seamless flag must be clear, but it appear that it is possible to set
     it in most circumstances.  However, this method can be incompatible with
     some old players, but is used on some commercial DVDs (among others, Sony
     Superbit DVDs.)  A pink warning is displayed in the risky cases.
     Technical info: http://forum.doom9.org/showthread.php?p=819669#post819669
  A. Burn DVD: New option (under Linux and MacOSX only) in the layer break
     dialogue to modify the IFO files only, without creating the ISO image.
     This option can be used to burn the DVD files directly with growisofs.
  A. New function to recompute the VTS_TMAPTI table (Time Map) of the current
     Title PGC, or all time maps of the current title domain or of the DVD.
     This function is called automatically when a time map needs to be modified
     but can also be called on demand via the "DVD" and "Title" menus to fix
     bad time maps, or to build the time maps of non-sequential titles.
  E. Kill Playback:  The first cell command that is normally executed is now
     included in the pre-commands to minimize the risk of navigation errors
     (but only if this command is useful and legal in the pre-commands.)
  E. PGC Editor's cell list:  When a cell command is defined and the seamless
     joint flag of the next cell is set, the "Layer Break?" checkbox is now
     highlighted in pink, to warn the user that the cell command is executed
     only when this seamless flag is clear (ie, layer break checkbox ticked.)
  E. When a titleset is present on disc but not referenced at all in the IFOs,
     it is now possible to move it automatically to a special backup folder.
     Previously, the user had to do it manually.
  E. Improved the VOB desynchronised error check to identify the tiny black
     cell added by PgcEdit at the end of the VOB files but not referenced in
     the IFOs.  (This situation can happen when the IFOs are not saved by the
     user after the creation of a new cell.)  It is now possible to reuse this
     cell with the PGC Editor functions "Create new cell" and "Reassign VOB/
     Cell ID" with the option to create a new blank VOB cell.  Previously, a
     VOB Desynchronised error message was issued.
  E. Burn DVD: The Shutdown Computer option is not remembered any more from
     session to session.  That was too dangreous.
  F. After an Import VTST Title, Import FP Clip or Import Title intro/closing
     clip, the number of BOVs were not initialised correctly, which caused some
     other functions (notably Clone PGC) to crash.
  F. Clone PGC function did not update the TTN internal variables correctly.
  F. Trace: A warning is now issued if a cell command exists, but the cell that
     follow the current cell has its Seamless flag set. The cell command cannot
     be executed in this case.
  F. Blank Out all Title PGCs:  The cells table was wrong when this function
     was applied to a Title domain without VOB files present on HDD.
  F. Replace VTST Titles:  The streams attributes of the current menu domain
     were copied from the imported IFO.  Now, the table is left untouched.
  F. Remove cell in PGC Editor: When removing the last Program, the PG number
     was kept in the table, and forced to 0.  Now, it is correctly removed.
  F. Info -> Jumps from VMG to Current VTS:  Some menu buttons or BOV commands
     were wrongly included in the output.
  F. Fixed a bug occurring in very rare circumstances:  The number of BOVs of
     the PGC was sometimes wrong after a delete cell from the PGC Editor.
  F. Tools configuration didn't work if FixVTS was not used before calling it.
  F. When a titleset was removed or imported, the parental management table
     VMG_PTL_MAIT was not updated.
  F. Some minor GUI bugs fixed.
  F. The Download Daemon Tools link was dead.  Changed to current one.
  W. Workaround for a little bug in the faster mkisofs.exe program provided
     with PgcEdit.  This exe doesn't set the error level like the original one,
     and therefore PgcEdit was unable to discover if it has failed.

7.0 (April 22, 2006)
  -  Version number bumped up to 7.0.  I'm tired of this leading "0."!
  A. Added a preview checkbox in the upper left corner of the main window.
     When ticked, selecting a PGC manually starts the preview automatically.
  A. Menu Editor:  New function "Edit -> Copy button position only" to copy the
     current button position.  Paste it with "Paste Current Button".
  A. Menu Editor:  New functions "Button -> Increase / Decrease Button Number"
     to move the current button in the list of buttons.
  A. New function Info -> Jumps from VMG to Current VTS to find out the global
     references to the current VTS.  (This function doesn't show the references
     from the current VTS to itself.) Useful to verify if the last VTS is still
     called and to reroute the jumps before removing it.
  A. Preview:  In trace mode, it is now possible to blank the current cell from
     the preview window.  In addition, when all cells of the current PGC are
     blanked, the user is prompted to kill the playback of the PGC.
  A. Kill Playback:  When killing the playback of a Title PGC, the user has now
     the option to blank all cells of the PGC, to easily strip the original
     cells later with FixVTS or VobBlanker.  This function is similar to the
     option to remove the cells of a menu PGC and convert it to a dummy.
  A. Added the menu Options -> Functions -> Kill PGC Playback -> Always remove
     or blank the PGC cells, to eliminate the dialog asking if the cells must
     be removed (for a Menu PGC) or blanked (for a Title PGC.)
  A. PGC Editor:  Added a function to delete all multi-angles cells, keeping
     only one angle.  The Angle flags and First ILVU end value on the remaining
     cells are removed as well.  It is then possible to strip the unused ILV
     cells from the VOB files with VobBlanker.  It is necessary to remove all
     angles from the DVD or the domain that will be processed with VobBlanker,
     and to enable the "Fix Always VOB SYNCI/SRI Pointers in Titles" option!
     The same function can be used to remove the ILV flags and First ILVU End
     value in interleaved (mono-angle) PGCs.
  A. PGC Editor -> Remove Cells:  Added an option to keep the program numbers
     in sync with the original cells.  However, when this option is enabled, it
     is possible that several PGs are pointing to the same cell.  A warning is
     issued in this case, since this situation might be illegal.
  A. Added the menu Tools -> FixVTS, to launch FixVTS with the first VOB of the
     current domain already loaded.  Useful to strip the blanked cells from the
     VOBs after a cells blanking from the preview.
  A. Domain Streams Attributes:  It is now possible to remove the audio and
     subpic streams selectively in this dialog.  The streams assignments in the
     PGCs of the current domain are also deleted automatically.  The subsequent
     streams are automatically shifted if necessary.  The SetSTN commands are
     NOT modified!  (Note that this dialogue is now read-only when it is called
     from the PGC Editor.)
  A. Changed the maximum number of chanels to 8 in the Audio parameters of the
     Domain Streams Attributes dialog, to take the new formats into account.
  E. Calls Cross Reference and Go To Calling Command:  A Root menu (that is
     normally callable with the remote) is now considered as never-called if
     all titles of the same VTS are never-called, or if all titles have the PUO
     to prohibit calling this menu. For the Subpic, Audio, Angle and PTT menus,
     all non-dummy PGCs of the same titleset are checked, including the menus.
     For the Title Menu, all non-dummy PGCs of the whole DVD are checked.
  E. Burn DVD:  Support for the new /TESTMODE option of ImgBurn 1.2.0.0 (for
     DVD-R only!)
  E. Burn DVD:  Added a button in the burn setup dialog to use the faster
     version of mkisofs.exe, now provided with PgcEdit (under Windows only.)
  E. Burn DVD:  Added a check to ensure that mkisofs.exe is properly configured
     in the Burn Setup dialog.  Some guys used ImgTool.exe instead!
  E. Burn DVD:  Added an option to save automatically the Graph Data file for
     DVDInfoPro.  The file is saved with the same name as the source ISO file,
     but with the .IBG extension.  Requires ImgBurn 1.3 or more.
  E. Burn DVD:  Added new burn speeds in the speed selector dropdown menu.
  E. Burn DL DVD:  When a suitable cell cannot be found for the layer break,
     PgcEdit displays now in which cell the layer break should be.  You can
     therefore easily use VobBlanker to split that cell.
  E. Remap Title Numbers:  Now, this function searches for SPRM(4:Title Number
     in Volume) in the VM commands of the DVD.  If SPRM 4 is used, a warning is
     displayed, as it is dangerous to remap the title numbers in this case.
  E. Menu Viewer/Edit Command button:  In expert mode, the "Modify the command
     for the 2 (or 3) groups?" prompt is not displayed any more, except when the
     original commands are not identical in all groups.
  E. Read DVD:  Added a check for illegal entries in VMG_TT_SRPT table (Title
     assigned to a non existing PGC or 2 Titles assigned to the same PGC.) If
     the bad Title is the last one in the table, it is optionally removed,
     but the user must still fix the VM commands, if needed.
  E. When loading a new DVD, the Fix number of streams in VMGM/VTSI_MAT tables
     function do not prompt the user any more to fix the Menu domains with one
     subpic stream defined but never used by the menu PGCs, because it's legal
     and frequent on commercial DVDs, and this warning confused some users.
     However, this check is still made when the Fix number of streams is called
     from the "DVD" menu, and when opening the Domain Streams Attributes GUI.
  E. When loading the DVD, the End Byte pointers of the tables are now verified
     whenever possible to avoid stupid crashes with badly authored DVDs.
  E. PGC Editor: When editing a menu PGC, only one audio and one subpic stream
     is now displayed, since more streams in the menu domain is illegal.
  F. PGC Editor - Create New Cell:  Disabling the option to create the backup
     of the VOB file did not work.
  F. The "New 'Play All' PGC" function was broken.  Also, there is now a check
     to warn the user if the number of programs in the new PGC is greater than
     127 or the number of chapters greater than 99.
  F. The target of some Jump_VTS_TT and Jump_VTS_PTT was not found by the find
     target routine.  This caused some bugs in the Go to calling command, Calls
     cross references, Find jumps to nowhere, Jump to target and Highlight
     target functions.
  F. Trace:  When the Title Menu button is pressed during playback of a VTSM
     menu PGC, the Title menu is now called. Previously, a Resume to Title was
     made.  The correct behaviour in this case is uncertain, because the specs
     are not clear on this subject, but this behaviour seems logical and many
     players (though not all!) are doing this.  A resume is still issued when
     the Title menu is pressed during playback of a VMGM menu PGC.
  F. Trace:  Small bug fixed: when a cell command was reached, it was necessary
     to execute it twice, and the command was logged twice as well.  However,
     the cell command was simulated only once.
  F. Small bug in the Jump To PGC Upon DVD Insert function, introduced in 0.6.3
     fixed: the resume cell of the CallSS command inserted in the beginning of
     the pre-commands of the resume title was wrong.
  F. Fixed a bug in the Info -> Jumps from VMG to Current VTS function.  The
     Prev/Next/GoUpPGCN links of the current VTS were wrongly displayed.
  F. Burn DL DVD: When burning a DL DVD saved by DVD Remake v3.4 (without first
     resaving it with PgcEdit), the computation of the layer break position was
     wrong.  To fix this problem, the DVD (including single-layer DVDs) are
     saved automatically when the burn function is started.
  W. Added several workarounds for a (possible) bug in TitleWriter: TitleWriter
     assigns several Title numbers to the same PGC. Now, PgcEdit should support
     this strange (if not illegal) way to use the VMG_TT_SRPT table.
  W. Under Windows XP, the Windows command TSKill.exe is now used instead of
     PSKill.exe (which caused false positive warnings of some picky anti-virus
     programs).  However, PSKill is still used when TSKill is not found.
     (The kill executable is used only by the Burn DVD function to abort the
     creation of the ISO image when the user clicks on the Cancel button.)

0.6.3.1 (January 29, 2006)
  F. Burn DVD: If the user cancels the layer break selection dialog, the dialog
     is closed, but the OK and Cancel button of the main burn dialog are still
     disabled.  There is no way to close this dialog, and the user must kill
     PgcEdit.  This problem has been introduced in v0.6.3, and is now fixed.

0.6.3 (January 28, 2006)
  A. It is now possible to bypass a menu with buttons with Kill Playback.
     The user is prompted to select the button to simulate.
  A. Pgc EDitor -> Create new blank cell:  New interface.  It is now possible
     to insert the cell at the beginning of the PGC.
  E. Pgc Editor -> Create New Blank Cell: The GUI has been revamped completely.
     It is now possible to use an existing and referenced Cell from the
     original VOB file, or, as before, to create a new blank cell.  The button
     to call this function has been renamed from "Create a new blank cell" to
     "Create a new cell".
  A. Pgc EDitor -> Create new blank cell and Reassign VOB/Cell ID: Option added
     to reuse the last tiny blank cell at the end of the VOB file (available
     only when that cell has been created previously by PgcEdit.)
  E. Pgc Editor -> Create new blank cell and Reassign VOB/Cell ID: There is now
     a Preview button in the GUI to show the selected replace cell.
  E. Jump to PGC upon DVD insert:  When the target PGC is in a menu domain, the
     last title played before the target PGC is now always called (but not
     played) just before the target menu PGC so that a valid resume point
     exists when the menu is reached for the first time.  This method should
     fix the (rare) problem caused by the usage of a RSM command in the menu to
     call the main title.  Previously, the title PGC was called before the menu
     only when it was in the same titleset than the target menu.
  E. When importing titles in a DVD with parental management, the user is now
     prompted to remove the parental management of the original DVD, and when
     importing a menu, it is prompted to clear the parental management IDs
     of the menu PGCs, if there are IDs in the menu.
  E. Burn DVD:  Interface revamped, and new option to close automatically
     PgcEdit after a successful ISO creation.
  E. Burn DVD:  The new ImgBurn 1.1 command lines options /CLOSESUCCESS and
     /WAITFORMEDIA are now used instead of /CLOSE (though /CLOSE is still used
     if the ISO image is burnt with DVD Decrypter.)  Please note that you need
     ImgBurn 1.1.0.0 or the "Close ImgBurn" option will not work!
  F  Burn DVD: The layer break sector passed to ImgBurn or DVDD was wrong when
     burning a DL DVD-R.  (No problem with DL DVD+R.)
  F. Burn DVD:  Changed the way the backup files are excluded from the
     compilation.  In v0.6.2, the old method caused harmless errors when the
     DVD files were moved in the new VIDEO_TS directory.
  F? Burn DVD:  Changed again the syntax to exclude the backup files from the
     compilation to avoid the mkisofs "-m" bug.
  F  Burn DVD:  A batch file is now always used under Windows to call mkisofs,
     and the mkisofs command line is split in environment variables to avoid
     the line too long M$-DOS bug under Win9X.
  F? Burn DVD:  Redirecting stderr to stdout doesn't work under Win9X!
     Workaround: the output of mkisofs is not well checked under Win9X.  For
     this reason, the user should take care of the error messages in the log!
     See the warning under Win9X when the Burn Setup dialog is opened.
  F. Burn DVD:  Wrong error message when moving the backup folders in VIDEO_TS.
  F. Burn DVD:  Under Windows, it is now impossible to type foreign characters
     in the output ISO field, because those characters are not correctly
     translated by MKISOFS, and therefore the file cannot be opened by ImgBurn.
  F. Kill PGC Playback: The Set, SetCLnk, CSetCLnk or CSetLNK command with a
     Link to a cell, program or chapter were not trapped.  Now, a dialog pops
     up to warn the user.
  F. PGC Editor: Fixed a bug in the Cell preview: A wrong cell was shown after
     a Vob/Cell ID remapping.
  F. PGC Editor: Toggling the Layer Break checkbox did not change the seamless
     joint flag value.  This bug has been introduced in v0.6.2.
  F. Command Editor - CallSS command:  The option to resume at the point where
     the title was interupted (resume cell 0) has been removed, since this
     option seems illegal in all cases.
  F. Remap Titlesets: The modified JumpSS-VTSM commands in the menu buttons of
     the VMGM were not saved during the operation.
  W. Workaround for the pskill.exe problem with McAfee antivirus.  It is now
     encrypted in the standalone executable, so that McAfee doesn't complain.
     McAfee may still complain when the real file is scanned in the bin folder.

0.6.2 (December 2, 2005)
  E. PGC Editor's cells flags:  The Access Restricted and the VOBU Still flags
     are now availables in the Cells Type Flags editor, rather than directly in
     the cells list.  Previously, only the VOBU Still was available.  The Type
     Flags button contains now two values, one for each byte.  Also, some of
     the flags labels have been changed to reflect more closely the official
     terminology.
  E. PGC Editor:  Added tooltips on the cell command number fields to display
     the current cell command.  The cell commands numbers higher than the
     number of cell commands currently defined are now highlighted in pink.
     Similarily, the Prev/Next/GoUpPGCN link values are highlighted in pink if
     the target PGC doesn't exist.
  E. Enable All Operations now prompts the user if he wants to remove also the
     Access Restricted flags on the cells of the current PGC, when this flag is
     set on some cells.  Warning: the Access Restricted flag is especially used
     by the Sony ARccOS protection. In this case, it should not be removed.
  E. Changed the listbox/entry default color to use the Windows default.
     Added Option -> User Interface -> White Listbox Background also under
     Windows and Mac OSX.
  E. Burn DVD: a new selector button has been added to select the DL media type
     from the main dialog.  The Sectors in L0 value in the Burn Setup window is
     now ignored when burning a DL+R.
  E. Since ImgBurn is now stable and doesn't require the layer break sector
     number in his settings any more, the dialog asking if the user wants to
     copy the layer break value in the clipboard has been removed when ImgBurn
     is used, and when a DL DVD-R is used.
  E. Burn DVD: when the log is displayed, the Save button uses now by default
     the same filename as the ISO, but with a _log.txt extension.
  A. A new menu "Options -> Install -> Install a plugin" has been added to help
     the novice user to install a PgcEdit plugin.
  E/F. The standalone version of PgcEdit now uses freeWrap version 6.1.  This
     solves the problem of the mouse double-clicks being passed through the
     file open/save or folder selection dialogs to the underlying window.
  F. The Kill PGC playback function now appends a LinkPGCN command at the end
     of the pre-commands when the NextPGC link is non-zero and doesn't point to
     itself.  Without this command, the PGC was sometimes played.
  F. Fixed the bug in Remove Cells function of the PGC Editor that caused the
     function to silently fail in some occasions.
  F. The Prohibited User Operations window was sometimes pushed below the main
     window when the Input Value button was used.
  F. Import Title Closing Clip crashed if the current PGC was a PGC without a
     Title number.
  F. Fixed a problem on some Windows systems where the web browser executable
     was wrongly considered as not executable by TCL/TK.
  F. Burn DVD:  Workaround for a problem with mkisofs on some systems: Mkisofs
     reports sometimes an "Invalid node - -m" error when the backup folders are
     not deleted.  Now, when this error occur, a dialog pops-up, asking if you
     want to delete the backups, continue w/o deleting the backups, or cancel.

0.6.1 (October 4, 2005)
  A. Burn: Added support for ImgBurn.  The burn function now uses ImgBurn
     instead of DVD Decrypter to burn the ISO.  Although it is recommended to
     use ImgBurn, it is still possible to use DVD Decrypter, for backward
     compatibility.
  A. Burn: Added a "Launch ImgBurn" button in the burn dialog to easily examine
     your blank media before launching the burn operation.
  A. The "Fix number of streams" macro is now launched automatically when a DVD
     is opened (but not when the DVD is reopened).  If some discrepancies are
     found, the user is prompted to fix them. An option to disable this feature
     has been added in the Options menu.
  A. PGC Editor:  Added a function to create a blank cell in a PGC.  Can be
     used also in a dummy PGC.  You may use VobBlanker to replace the new
     cell.  Useful if you want to add a new clip or a menu page in a domain.
  A. New function "File -> Replace VTST Titles" to replace the current VTST
     domain by an imported one.  Can be used to replace a VTST domain after
     a reencoding or a shrink of a title with DVDShrink in reauthor mode.
  A. Trace Mode -> State menu: Added functions to snapshot the current trace
     position and state, to be able to return to a snapshot point at any time.
     Also, some snapshot points are automatically saved during the trace.
     This feature can be used as a limited undo of the last trace steps.
     Drawback: the 'PGC Played' flags and highlights are lost after a restore.
  A. Trace Mode: A special snapshot point is recorded automatically when the
     user quits the trace mode, and restored when the trace mode is reenabled
     (and when the current DVD is reopened with File -> Reopen DVD).
     It can also be restored with State -> Return to -> Trace Mode Closed.
  A. Trace mode: Added some keyboard shortcuts, available in trace mode only:
     - Control-Right: ->   Step
     - Control-Up:    ->>  Next PB
     - Control-Down:  ->>> Run
     - Control-Left:  ->|  Break
     - Escape:        ->|  Break
  A. Added some keyboard shortcuts in main panel:
     - Control-Shift-B: Incremental backup,
     - Control-Alt-B:   Restore Backup
     and one shortcut available only when the command pane is active:
     - Control-Insert:  Append to Scratchbook
  A. Added "Display PGCs list as text" function in the Info menu.
  A. Added a progress bar in the status bar.
  A. Menu buttons viewer: It is now possible to right-click on the Image < and
     Image > buttons to display the prev/next background by larger steps.
  A. New function "DVD -> Remap Titlesets" to rearrange the order of the
     Titlesets. This function renumbers the JumpSS-VTSM commands automatically.
  A. New functions to add, modify, export and import user comments for the
     PGCs.  The comments are displayed in the PGC selector pane, in the current
     PGC title and in all places where a PGC label is displayed.
  A. Added an option to allow PgcEdit to automatically add PGC comments when
     creating new PGCs or for information purposes. Currently, the Calls Cross
     References and Import Startup/Intro/Closing Clip functions are able to
     create comments automatically.
  A. Added an option to automatically load and save the PGC comments in the
     backup folder when a DVD is opened or saved.
  E. The Utilities and Macros menus are now removed, and replaced by the DVD,
     Domain, PGC, Menu and Title menus.
  E. The Options menu is now splitted in sub-menus Startup, Input/Output, User
     Interface and Command Editor.
  E. Moved the Plugins menu before the Tools menu. (Was after the Tools menu.)
  E. The Return key can now be used to accept all requesters.  (Same action as
     clicking the OK button.)
  E. Added an Help button in the Search All results, and in the Go to Calling
     Command windows.
  E. Added several options in the PGC Editor's Celltimes.txt function.
  E. It is now possible to delete a range of cells at once in the PGC Editor.
  E. In the PGC Editor's subpic streams assignments frame, a message shows now
     which subpic streams are really necessary according to the current domain
     stream attributes. Also, in the assign streams GUI, the unused streams are
     now greyed out, although it is still possible to modify the assignment.
  E. It is now impossible to configure the Domain Streams Attributes's video
     mode with an illegal combination of flags (for example 4:3 + LetterBox or
     Pan&Scan, or 16:9 without either Letterbox or Pan&Scan or both.)
  E. Renumber GOTOs option:  The GOTO commands duplicated or copied/pasted to
     the clipboard are now also automatically renumbered.
  E. The GUI of the Remap Title Numbers function has been enhanced.
  E. It is now possible to specify the GPRM to use for the Import First-Play
     Clip and Import Title's Intro Clip functions, and force the macro to
     continue even if there are no unused GPRMs remaining in the DVD.
  E. Added an option in the Import Title's Intro Clip macro to display the
     intro clip only the first time the title is played.
  E. Changed the default settings for the "Enable Navigation Buttons" macro.
  E. Trace:  Renamed the preview option "Start Preview automatically when
     playing a cell?" to "Open Preview automatically when playing a cell?".
  E. Trace's snapshot menu: The PGC label and pre/post/cell line number are now
     displayed in the menu items of the Snapshot submenus, and a new "Clear all
     Snapshots" function has been added.
  E. Info -> PGC: Added the Angle number in the cells list.
  E. Info -> PGC param and Cells tables: Added the total playing time for each
     domain, and the total playing time for the whole DVD.
  E. PUO editor: added a button to input the PUOs as a value.  Can be used to
     paste the value in the PUO_plugin.
  E. Better handling and error messages when an invalid Nav Pack is found when
     scanning for menu buttons or BOVs.
  E. The error message displayed when trying to load an encrypted VOB from the
     DVD drive says now clearly that it's a CSS encryption problem.
  R. The DVDShrink Remote Buttons and DVDShrink Streams Remapping macros are
     removed.  The same functions are now availables in the DVDShrink plugin,
     as well as two new functions to launch DVDShrink from within PgcEdit.
  R. Burn: Removed the "Download Daemon Tools" button on systems running in
     Germany and Unided Kingdom, due to legal issues in these countries.
  F. Burning double layer DVDs did not work if the "Split ISO image into 1 GB
     chunks" option was enabled.
  F. The VTS_TMAPT table is now updated upon creation or deletion of a PGC in
     the Title domain.
  F. The Title number displayed in the PGC selector was wrong when the TTNs
     were not stored in ascending order in the title domain.
  F. A Set, SetCLnk, CSetLnk or CSetCLnk using a SPRM as the first operand of
     the IF condition was not flagged as invalid. However, it was not possible
     to enter such an illegal command in the command editor.
  F. Command Editor: Fixed the error opening the Command Editor when the "Start
     in Trace Mode" option was on and a DVD was loaded via the command line.
  F. Fixed a very rare bug in the handling of the Command Editor window size.
  F. The PGC Editor window was too small when displayed on a 800x600 screen.
  F. Menu viewer/editor:  When a menu group has both the Letterbox AND Pan&Scan
     flags set, the menu was displayed in pan&scan mode.  Now, PgcEdit checks
     the video attributes of the current domain to determine the display mode.
  F. It was possible to crash the BOVs menu viewer/editor if the scan for BOVs
     of the current titleset was interrupted.
  F. Trace mode: When the Next Chapter button was pressed when the last program
     was playing, sometimes the last program was played again, instead of the
     NextPGCN link or post command.
  F. Trace mode:  The Title PUOs (in the VMG_TT_SRPT table) were not displayed
     in the Watch PUOs window.
  F. Trace mode: In "Next PB" mode, the playback stopped when entering the post
     commands of a dummy PGC.  Now, the playback stops only if there is a pre/
     post breakpoint on the dummy PGC.
  F. On foreign window platforms, the config files were saved in the user's
     home (or in the "Application Data" folder if this folder was present.)
     Now, the config files are saved in the correct application data folder,
     even if his name is different.
  F. Fixed some little bugs when a VTS has no VTS_TMAPTI table at all.
  F. New 'Play All' Title bug:  In trace mode, JumpVTS_TT to the new TTN was
     unable to find the target PGC.
  F. A bug prevented 'Create New Blank Cell' to automatically save the DVD.
  F. New version v1.11 of PsKill.exe by SysInternals.com (in the bin folder
     under Windows).  The previous version was sometimes wrongly identified as
     a possible virus by some virus killers.
  F. PgcEditPreview v2.1 by Jeanl  (Fixes 2 bugs.  See history below.)

0.6.0 (July 7, 2005)
  A. Burn DVD / Create ISO support for Double Layer DVD+R and DL DVD-R:
     - The method allow the user to select the layer break in a wide range of
       cells (actually twice as wide as the 'standard' method)!
     - Added a GUI to specify the Layer Break cell.
     - Added menu "Options -> Burn / Create ISO setup" menu to call the Burn
       Setup dialog directly from the main window.
     - The Burn Setup window has been modified to include, among other things,
       the capacity of a single layer DVD and of a double layer DVD.
     - New starter app for MacOSX (v0.5a), by Pucklock, including mkisofs 2.01
       (needed for the Create ISO function.)  Thanks to Pucklock!
       Note that this new starter app starts the X11 version automatically
       instead of the Aqua version.
  R. Removed the original link to DVD Decrypter's homepage in the Burn Setup
     dialog because this page is discontinued, and may be monitored by a major
     DVD company.  Replaced by a direct download link at VideoHelp.
  A. Utilities -> Remap Title Numbers function to renumber the Titles.  The
     references to the Title numbers in the VMG are automatically updated.
  A. Utilities -> Delete last VTS in DVD function.  Use this function only when
     the last titleset is never called from the VMG!
  A. Info -> Find Jumps To Nowhere function showing commands and PrevPGCN,
     NextPGCN or GoUpPGCN links jumping to non existing PGCs or Titles.
  A. Calls Cross References: Added listing of jumps to nowhere references.
  A. Added an option to display the PGC labels as text in the context menu of
     an empty line of the PGC selector.
  A. Added shortcut Control+P to launch the PGC Preview.
  A. Added the first step to implement plugins for PgcEdit in the future.
  A. Added an option to change the default listbox background color to white
     when running PgcEdit under X11.  (Linux, and MacOSX with Tk-X11 only)
  E. After 'Clone PGC' or 'New Play All Title', the number of buttons of the
     new PGC is now displayed in the PGC Selector.
  E. Menu Editor: Changed the menu labels Buttons -> Align vertically and Align
     horizontally to Align on same column and Align on same row.
  E. Now, there is no need to select your Web Browser the first time an HTML
     page is opened under Mac OSX: the 'open' command is used instead.
  E. Under Linux and Mac OSX, the config files are now saved in "~/.PgcEdit/".
     Under all platforms, the leading dot has been removed from the filenames.
  F. Burn DVD: The calculation of the size of DVD-ROM files crashed when an
     empty DVD-ROM directory was present in the compilation.
  F. Fixed some bugs in the Find All function: the line number (when the target
     was a pre, post or cell command) and the cell number (when the target was
     a button or BOV) were off by 1, and the button group was not always
     correctly displayed.  The GUI has been changed also to avoid the Tcl/Tk
     limitaiton of the number of occurrences that can be displayed in a canvas.
  F. Jump to PGC Upon DVD Insert macro: when several LUs were present and the
     user selected the option to process all LUs, there was a bug in the
     reconstruction of the commands of the modified PGCs in LU 2 and following.
  F. PGC Editor: The color table was not saved after an Import Colors from an
     IFO file.
  F. An error occured when trying to highlight the target of a Jump command when
     the target VTS was not present.
  F. It was sometimes impossible to close the "Go to calling command" window.
  F. PgcEditPreview Version 2.0, by jeanl.  Fixes 3 bugs.  See history below.


0.5.7 (June 4, 2005)
  A. PgcEditor: Added an Angle column ("A.") in the cell list.  The angle value
     is computed from the Type Flags.  "-" means all angles, "?" means error.
  A. Added a function to remove the current LU from the IFO.  The VOB cells are
     left unreferenced.  You may strip them with VobBlanker easily.
  A. Added a button "CellTimes.txt" in the Pgc Editor to generate the list of
     cell times needed to remux a clip with chapters.  You may add an offset to
     the cell times if you want.
  A. Added an option to hide the [hex codes] in the main commands listbox.
  A. Added an option to go automatically to Trace mode whan a DVD is opened.
  A. Shift-clicking on a PGC in the PGC Selector now toggles the breakpoints on
     that PGC (without selecting it).
  A. Added a "Documentation" item in the help menu.  It tries to open these
     files: "<PgcEdit install dir>/doc/PgcEdit_manual.chm" (under Windows only)
     then, if the file is not found, "<install dir>/doc/PgcEdit_manual.htm",
     then "<install dir>/doc/PgcEdit_manual.txt", and finally, it opens the
     online HTML version stored at VideoHelp.
     The old, obsolete single text file has been removed from the distribution.
  A. Added an option to tell PgcEdit which web browser you want to use.  Now,
     the homepages, online docs and DVD-Replica online help are available also
     for Linux and Mac users.
  E. The shortcuts of the context menus of the PGC selector are now displayed
     in the menu.
  E. Added tooltips on the edit buttons with the keyboard shortcuts.
  E. Added tooltips in PGC Editor's color table to show the color number.
  E. Added some tooltips on the labels of the cell list in the PGC Editor.
  E. Added the Control-Delete shortcut to call the Blank Out All PGCs utility.
  E. The "DVD modified, are you sure?" warning now allow to save the DVD.
  E. New Preview 1.9 by jeanl.  In info mode, the buttons outlines are
     displayed.  Also, mfc42.dll is now linked in the executable, and is
     therefore not needed any more under Linux.
  F. Bug in the Search function in All mode: the line numbers were wrong.
  F. Menu Editor: The Align button functions where not working as expected when
     the current button position was previously edited manually.  Fixed.
  F. Workaround for a Tk bug under X11 (Mac and Linux): a wrong height is
     calculated by Tk for windows with menus.  Therefore, the OK/Cancel
     buttons were hidden in the menu editor.
  F. Some display problems fixed under Mac (X11 and Aqua versions.)
  F. Error when blanking a titleset when the preview window is open fixed.
  F. "Save IFOs as" saved the modified VOBs also (in the original folder).
  F. When the option "Store backup folder in parent of VIDEO_TS folder" is ON,
     the backup folder is saved now in the parent only if the DVD files are in
     a VIDEO_TS subdirectory.
  F. Trace:  LinkTopCell in a menu button linked to the previous cell.  Fixed.
  F. Fixed a rare bug when reading the menu buttons information.
  F. Fixed some english grammar/vocabulary errors.

0.5.6.1 (May 12, 2005)
  F. mfc42.dll was missing from the Linux binary distribution.  Fixed.
     (Nothing changed for Windows users)

0.5.6 (May 11, 2005)
  A. New semi-automatic macro "Jump to PGC upon DVD insert". It's a modified
     version of jeanl's "Jumping straight to the movie (or the menu) with
     PgcEdit" and 2COOL's "Jump2Pgc" guides.
  A. Added "Swap or Copy Menu PGC" utility, to swap or copy the PGC parameters
     (cell table, color table, streams, VM commands, ...) from another PGC of
     the same menu domain with/to the current PGC. Useful to cleanup the menus.
  A. Added the command "Delete All Commands in PGC" in the PGC Selector popup
     menu.
  A. Added the utility "Delete All Commands in Domain", also available in the
     PGC Selector popup menu.
  A. Added the function "Delete All Commands in DVD", available only by right-
     clicking on an empty line in the PGC Selector.
  A. Added the utility "Blank out all Title PGCs in DVD", that calls the "Blank
     Out All PGCs in Domain" utility in sequence for all title domains.
  A. Added an option to change the default colors of the GUI, requested by a
     Linux user.
  A. Option "Skip Preview of short cells (< 1sec., without still time)?" in
     the preview configuration of the trace mode.
  A. PGC Editor: Added an edit popup menu on the audio and subpic streams title
     label to copy and paste all audio or subpic streams assignments.
  A. Added a button "All" in the search GUI, to display all occurrences in a
     window.  You may click on the buttons to jump to any occurrence.
  A. Added some icons for Linux users (included in the Zip archive), thanks to
     M7S.
  F. PgcEdit_Preview 1.8 by jeanl.  See history at the bottom of this file.
  F. Fixed a little bug in Kill Playback macro that caused the display of an
     erroneous warning when killing the playback of a menu PGC with some cell
     commands (LinkTailPGC...)
  F. A wrong path was used to store the configuration files on some Win XP
     foreign systems.  Fixed.
  F. Fixed a little problem when using an Alt-F# system key under windows:
     The tool associated with the F# key was launched instead.
  F. Fixed a bug in the error message routine when a DVD cannot be opened
     successfully.
  F. Fixed a rare bug in trace mode.

0.5.5 (April 22, 2005)
  A. PREVIEW (and menu backgrounds) available for Linux, and probably also for
     Mac OSX.  You must install wine (for Linux) or darwine (for Mac OSX) to be
     able to use it.
  A. Added the Preview -> Use Preview option, to allow Linux or Mac users to
     turn the preview off, in case of problems with wine or darwine.  Although
     not very useful, this option is available also under Windows.
  F. Fixed a bug in v0.5.4, which caused the display of 16:9 letterboxed menus
     in the menu viewer to fail.
  F. When saving menu buttons, if you answered NO at the "Backup VOB?" request,
     PgcEdit offered to backup the VOB again and again.  Fixed.

0.5.4 (April 21, 2005)
  E. New PgcEdit_preview v1.7: with option to turn off the usage of DirectDraw
     overlays to show the preview, and an option to save the menu backgrounds
     as PPM instead of BMP (internal use only!)
  E. Added "Preview -> Disable DirectDraw Overlays" (Windows only) option.  On
     some systems, it may be faster to turn off the DirectDraw overlay display.
  E. Shift-clicking on the "BMP" button in the preview window allow to save an
     image in PPM format.
  F. Import First-Play/Intro/Closing Clip macros were broken in 0.5.3.  Fixed.

0.5.3 (April 20, 2005)
  A. Added an option in Info -> Calls Cross References do delete the commands
     in the never-called PGCs, and to clear the Prev/Next/GoUpPGC links.  May
     be used to find more never-called PGCs in subsequent calls to the Calls
     Cross References function.  Also, another option allow to convert never-
     called menu PGCs to dummies, to easily blank them with VobBlanker.
  A. Added "Delete All Commands" in the Edit (and popup) menu.
  F. Important bug in v0.5.2 fixed: new buttons created in a cell originally
     without buttons/BOVs were saved only in the first nav pack of the cell.
  F. PgcEdit was unable to parse the VTSM_C_ADT table if the table was present,
     but with no entries defined in the table.  Fixed now.
  F. Fixed a bug in the parsing of the VTS_C_ADT table, occuring in rare
     circumstances: a wrong Nav Pack number was read, causing the search for
     menu buttons or BOVs to fail.
  F. Inport First-Play/Intro/Closing Clip: The cell commands numbers of the
     imported title are now forced to 0 in the cell playback table.
  F. Added a little delay when the Open DVD/Save DVD file requester is closed,
     to avoid a little Tk bug.

0.5.2 (April 16, 2005)
  A. Added a Configuration option in the virtual player setup to load the PGN
     (Program number) instead of the PTTN (Chapter number) in SPRM 7.  Many
     software and hardware players are not standard compliant on this point.
  A. Added Export and Import options to save and load the color lookup table of
     the current PGC in the PGC Editor.  File format: raw YCrCb color table (64
     bytes, with leading 0 before each color) or RGB colors in ASCII format.
     The import function can also import the colors from a Muxman project, or
     from a VTS IFO file (the colormap of the first PGC is used).
  A. Added an option to display the popup menus when the right mouse button is
     released instead of pushed.  This option is not recommended, though.
  A. Added an option to store the PgcEdit_backup in the root folder of the DVD
     instead of in the VIDEO_TS folder.  Useful to launch programs that doesn't
     work if there are illegal files in VIDEO_TS (like WinDVD).
  A. Added File->Incremental Backup.  Renames the current PgcEdit_backup folder
     (adds the modification time and date), and creates a new PgcEdit_backup.
  A. A warning is issued when entering the menu buttons viewer if several sets
     of menu buttons are found in a cell.  Currently, PgcEdit handles only the
     first set.  A new option to optionally scan for multiple sets of BOVs has
     also been added in the 'Scan for BOVs' dialog, and the scanning for sets
     of buttons is optimized for speed.
  E. Multiple errors messages when parsing the VOBs for menu buttons are now
     suppressed.  Take care: one error message means that the whole VOB is not
     correctly parsed!
  E. When saving buttons or BOVs, the original highlight status is left
     unchanged so that the animated highlights (for example, in Spiderman) will
     now still be animated.
  E. File->Delete Backup(s) is able to delete the backups created by PgcEdit,
     VobBlanker, MenuShrink and Windows (Copy of ...), including incremental
     backups.  TitleSetBlanker backups are not supported any more.
  E. Burn DVD:  Excludes the backups PgcEdit_backup*, VobBlanker_backup*,
     MenuShrinkBackup* and "Copy of *" from the compilation.
  E. Better error trapping for file I/O errors (copy, delete, rename, makedir).
     Now, a dialog pops up, allowing to retry the operation.
  E. Thanks to the demo version of the Tcl DevKit, the code is now a little bit
     optimized, and a couple of potential bugs have been fixed.
  F. The last VTS's title domain BOVs were never saved.  Fixed.
  F. "Can't read "::buttons::butsinfo(*,hlendtime)": no such element in array"
     (and selendtime) errors when a new button was created are now fixed.
  F. The total number of menu buttons or BOVs displayed in the PGC selector
     label was not updated after a Remove Cell.  Fixed.
  F. Trace: When in a button command, LinkNextCell linked to the current cell,
     and LinkPrevCell linked to the current cell -2.  Fixed.
  F. Fixed a little bug in the "Options/Install/Associate PgcEdit with IFO (or
     BUP) Files", when the association was already present, but was blank.
  F. Problem deleting the DLLs in the bin directory when uninstalling PgcEdit
     is now partially fixed.  You will need to delete them manually.

0.5.1 (March 28, 2005)
  A. Menu Buttons/BOVs Editor.
  E. When a DVD is opened, the Trace mode is now automatically resetted (same
     as pressing the Insert DVD button in the trace window).  However, the
     breakpoints are not lost (except the PGC breakpoints when opening a new
     DVD from another folder).
  F. Wrong display aspect ratio was used in the menu buttons viewer for group
     types sharing modes "normal" + "letterbox".
  F. Fixed wrong highlighted target/jump to target in menu domains: the target
     was always in LU 1.
  F. Moved the stream's VOB IDs from the Domain Streams Attributes to the PGC
     Streams assignments GUI, where they should be.  The streans IDs are now
     hopefully corrects.
  F. Linux standalone executables 0.5.0beta1 to 0.5.1beta1 were broken.  The
     sources were OK.  V 0.5.1beta2 is the first working 0.5 standalone exe.
  F. Fixed a bug in 'Delete last PGC in domain' in title domain.  The new total
     number of TTNs was wrong when a PGC sharing the same TTN number with
     another one was deleted.
  F. Small bug fixed that prevented to "Delete Last PGC in Domain" if the PGC
     was created with "New Dummy PGC" during the same PgcEdit session.
  F. Fixed a little bug in Utilities -> Enable Navigation Buttons.  When the
     First Play-PGC was selected, applying the function to the current domain
     (which doesn't make sense) caused an error.

0.5.0 (March 4, 2005)
  A. BOV (Buttons Over Video in Title domains) support:
   - Replaced the executable button_dump.exe by a Tcl/Tk function, able to
     parse the menu buttons in menu domains.  The menu buttons informations are
     therefore available also for Macintosh pre-OSX platforms.
   - Added "File->Find BOVs" and "Options->Automatically Launch BOV finder when
     a DVD is opened?" to find the BOVs at startup.
   - "Utilities -> Show Menu Buttons or BOVs" works now also for Title PGCs.
   - Added "Show BOVs" popup menu in the PGC selector on title PGCs.
  R. Removed the "Options/Show libdvdread warnings when parsing menu buttons?".
  A. "Fix number of streams in VMGM/VTSI_MAT tables" macro to change the number
     of streams in the VMGM_MAT and VTSM_MAT tables according to the number of
     streams enabled in the PGCs.
  A. Domain Streams Attributes check now if the current number of streams match
     the number of streams enabled in the PGCs.
  A. Domain Streams Attributes allow now to edit the audio stream types and
     parameters.  (Still no support to edit the karaoke parameters.)
  A. Open DVD: If there are empty VOB files, an option to delete them is now
     presented to the user when the DVD is loaded.
  A. Added a Burn DVD/Create ISO toolbar icon.  (Windows only)
  A. Added some missing credits and thanks in the About dialog.
  E. Kill Playback macro: New algorithm to determine if it is safe to use the
     macro.  It is safe to kill playback if there are no menu buttons, and if
     there are no cell commands jumping outside of the current PGC.
  E. Blank Out PGCs in Domain: The "Kill Playback only when it's safe" option
     now uses the new Kill Playback macro.
  E. Cell type flag SCR Discontinuity (System Clock Reference) renamed to STC
     Discontinuity (System Time Clock).  (Recommandation of Mpucoder)
  E. Burn DVD: The MenuShrinkBackup is now removed automatically from the DVD.
  E. Added the audio and subpic stream IDs in Domain Streams Attributes GUI and
     in Info -> Streams.
  F. PgcEdit_Preview.exe v1.6 by Jeanl.  Fixes an aspect ratio bug with VCD and
     SVCD resolutions, and another one with garbage addeded in the bottom of
     the image when the vertical resolutions was not a multiple of 32.
  F. When a cell is reassigned or blanked, the Seamless Joint flag is now
     cleared.
  F. Trace mode: The target of LinkPTT commands was wrong (was pre-commands of
     the PGC instead of target chapter.)
  F. Trace mode: A NOP command in a menu button or BOV is now ignored.
  F. Highlight Target/Jump to Target did not work in some cases with CallSS.
  F. Menu buttons viewer bug: After selecting another frame with the < and >
     buttons, the background image was not displayed for VMGM menus.
  F. Fixed a bug with the Video Attributes display.  The resolution, bitrates
     and 'top & bottom cropped' flags were wrong.  The saved attributes were
     OK, though.
  F. Fixed a bug when writing a PTT_SRPTI table containing PTTs assigned to
     program 0.  Yes, I've seen a DVD with such bizarre things!
  F. Fixed a bug occurnig after a Delete Program.  The program map table was
     not padded to an even number of bytes.
  F. Misc. little bug fixes.


0.4.9.1 (January 30, 2005)
  F. Fixed a bug in the new "DVDShrink Streams Remapping" macro.

0.4.9 (January 30, 2005)
  A. Added the "DVDShrink Streams Remapping" macro to check if the DVDShrink
     option "Logical remapping of enabled streams" may be safely used in full
     disc mode with the current DVD.
  E. Added a button "ISO639 language codes" in the Trace's Virtual Player Setup
     GUI to show the valid language codes.
  E. The PGC breakpoints are now cleared when a new DVD is loaded, but still
     not when the same DVD is reloaded (including after a restore backup).
  E. Burn DVD: Added an option to mount the ISO image using Daemon-Tools.
  E. Burn DVD: Added a confirmation dialog if the ISO image already exists.
  E. Burn DVD: The VobBlanker_backup folder is now automatically excluded of
     the ISO image, like the PgcEdit_backup folder.
  E. Burn DVD: Miscellaneous enhancements and little bug fixes.
  F. Burn DVD Bug fixed: The abort button did not kill the mkisofs process in
     the standalone exe.
  F. Burn DVD: Free disk space was wrong on Win 9X and on foreign Win 2K/NT/XP.
     Note: The free disk space is not tested any more on Win 95/98/ME/SE!
  F. Shortcut to select all the Trace output changed to Control-Shift-A to
     avoid a bug with Control-a.

0.4.8 (January 17, 2005)
  A. Option "When saving, leave at least 32K of space between IFO and BUP?" to
     help protect your DVD against defects and scratches.  Use with caution!
  A. Added File -> Burn DVD / Create ISO to create an ISO image with mkisofs
     and optionally burn it with DVD Decrypter.  This method supports the 32K
     space option above.  For Windows only.
  E. When loading the DVD, a warning is issued if there are empty (0 byte) menu
     VOBs.  Also, the stream attributes of the VOBs are resetted to 0 when the
     menu VOB is removed by the 'Blank Out All Menu PGCs' function.
  E. Trace mode: Removed "WARNING: Trying to play cell 1 of a dummy PGC!"
     dialog when a dummy PGC is played.  However, this message is still present
     if the cell to play is not cell 1.
  F. Fixed a rare bug occuring in Trace mode when the First-Play PGC was played
     (ie. when the current position was on the "*** post-command" label)

0.4.7 (January 8, 2005)
  A. New "Delete Last PGC in Domain" utility to remove the last PGC of the LUs
     in the current menu domain, or the last PGC of the current title domain.
     In title domain, the last PGC must be the last TTN of the titleset and the
     last Title in the DVD.
  E. Added a check for incorrect number of VOB IDs in the VTS_C_ADT table as a
     workaround for a DVDShrink bug in reauthor mode (number of VOB IDs saved
     in the table is always 1).
  F. As a SPRM cannot be used as the first operand of the IF comparison, the
     SPRM option has been removed from the GUI of the command ediror.  Also, a
     command with a "if ( sprm(x) ... )" will now generate an ILLEGAL SPRM
     warning.
  F. Show Menu Buttons did not work when there were no buttons in the first
     cell of the PGC.
  F. PgcEdit Preview v 1.5.

0.4.6 (January 3, 2005)
  A. Info -> Go To Calling Command function.  (May be very slow!)
  E. Menu Buttons Viewer now displays the video in the correct aspect ratio,
     and selects the buttons group matching the player setup in Trace mode.
  E. Miscellaneous enhancements and little bug fixes in Menu Buttons viewer and
     Trace mode.
  F. PGC Editor:  The total number of buttons displayed in the PGC selector was
     wrong after the user accepted the modifs in the PGC Editor.
  F. New 'Play All' Title:  Fixed the Next, Prev and GoUp PGCN of the new PGC.

0.4.5 (December 19, 2004)
  A. Added 'Remove Cell' button in the PGC editor.
  A. Added "Clone PGC" function (works in Title and Menu domains)
  E. PgcEditPreview version 1.4, by Jeanl.
  E. Menu buttons viewer: It is now possible to hide the buttons by clicking on
     the background image. (Windows only)
  E. Dummy PGCs in the title domain are now labelled with "(dummy)" instead of
     "(0:00)".
  E. "New Dummy PGC" in title domain now create the dummy 'attached' to the
     current Title (ie, it inherit the current Title and TTN numbers.)
  E. The Layer Break checkbox is now disabled in the Cells List of the PGC
     Editor when the Seamless flag must be kept OFF.  Therefore, the checkbox
     is checked and enabled only for real layer breaks.
  E. Renamed some labels of the Type Flags in the Cells list of the PGC Editor.
  F. The Remapping VOB/Cell ID function in the Cells List now clears the
     Seamless Playback flags of the remapped cell and the following one.
  F. The TTN numbers are now retrieved from the VTS_PGCITI table, instead of
     VTS_PTT_SRPT.  This is more reliable.
  F. Bug in "New 'Play All' PGC" function with wrong Category Mask and Parental
     ID Mask in the VTS_PGCITI table fixed.
  F. Bug in VTS_PTT_SRPTI table when saving a DVD with illegal dummy titles.
  F. Bug when launching both Preview and Menu buttons viewer at the same time
     fixed by Jeanl.

0.4.4 (December 8, 2004)
  A. PgcEditPreview version 1.3 (See bottom of this text for Preview history.)
  A. Added Preview full Domain VOB(s) utility. (Windows only)
  A. Menu buttons viewer: arrows to select the image to show in the background.
  A. Trace: Added a checkbutton to enable or disable the automatic preview.
  A. Trace: Added highlights of the played PGCs (and a menu to clear them
     in Trace/State, and a popup menu when clicking on a blank line in the PGC
     Selector).
  A. Info/Calls Cross References highlights the never-called PGCs in pink.
  A. Preview: The Info window of DVD2AVI strikes again.  (Modified by Jeanl,
     now includes the number of buttons.)
  E. Clicking or right-clicking on the current PGC line in the PGC selector do
     not change the current selected command in the main listbox any more.
     Handy to use the PGC Selector popup menu, and continue the trace.
  E. Kill Playback and Blank Out functions now reset the PGC Still Time to 0.
  E. Commands Editor: CallSS command has now the Resume Cell 1 by default.
  E. Trace watch Input: Reset button replaced by the usage count of the current
     GPRM or SPRM.
  E. Trace: it is now possible to break the Run mode from within the Preview
     window.  Thanks to Jeanl.
  E. Added a Preview menu, and moved the preview actions and options menu items
     there.
  E. dvd2bmp.exe is now integrated in PgcEditPreview.exe, and is not included
     in the Windows distribution any more.
  E. Menu buttons viewer: Middle-clicking or Control-Left-clicking on a menu
     button when not in Trace mode will now jump to the target of the button.
  F. Bug fixed in PTT_SRPTI table when the chapters are not in ascending order.
  F. Trace: Bugs with Title without TTN assignments fixed.
  F. Trace: RSM was jumping to the first cell instead of the last visited cell.
  F. Fixed bugs when parsing the VOBs to find menu buttons when the VOB IDs
     were not sorted in ascending order, or when some VOB IDs were missing.
  F. Bug when creating a new dummy PGC in title domain fixed.
  F. Preview 1.2 and 1.3: optimisation and bug fixes.  (by Jeanl)
  F. Fixed problem with focus not returning to the main window after a Preview.
  F. Trace watch Input: Language code and Button number are displayed only when
     the current GPRM or SPRM value is a legal language code or button number.
  F. Some more small Tcl/Tk library bug fixes.

0.4.3.1 (November 26, 2004)
  E. New button in the menubutton viewer in Trace mode to select the current
     button and stop Run mode.
  E. Menubutton viewer: You may now select a button and close the viewer in one
     operation by Control-clicking or clicking with the middle mouse button on
     a button in the viewer.
  F. Menubutton viewer: Clicking on the command display doesn't generate an
     error any more.
  F. The playback timing in Trace mode is now saved in the configuration file.

0.4.3 (November 25, 2004)
  A. Preview (Windows only) by Jeanl, based on Jsoto's modification of DVD2AVI.
     Version 1.0.  See the bottom of this page for the PgcEditPreview history.
  F. Little refresh bug after edition of the PTT table in the PGC Editor fixed.
  F. Little bug fixed in Tcl/Tk code, related to the position of popup menus.

0.4.2 (November 21, 2004)
  F. The VTS_PTT_SRPTI table was not correctly rebuild when the DVD was saved
     for multi-PGCs titles.
  F. Bug fixed in the menubuttons viewer when displaying a still frame menu
     with audio: the first frame of the next cell was shown.
  F. Bug in Tcl/Tk libraries that occasionally crashed the menu button viewer
     (with image preview) hopefully fixed.

0.4.1 (November 18, 2004)
  A. Limitted preview in the Menu Buttons viewer: the first frame with buttons
     is displayed.  For Windows users only.  Sorry.  Thanks to jeanl!
  E. The 3 Import Clip marcos now automatically allow to use the Mext Chapter
     button to skip to the end of the imported clip (or still frame).
  E. Little cosmetics changes.
  F. Fixed Save DVD bug after 'New dummy PGC' in Title domain.
  F. Trace: LinkTopCell, LinkPrevCell and LinkNextCell bug: The jump was done
     to the cell following the real target cell.

0.4.0 (November 13, 2004)
  A. Trace mode.  Allow to step through the commands and video cells, watching
     the GPRMs, SPRMs and PUOs changes, and more...
  A. PGC Editor: It is now possible to edit the Programs map by clicking on the
     Prog buttons.
  A. PGC Editor: Added a Chapter (PTT) table editor.
  E. In the menubuttons viewer, clicking on the Jump to Target button will now
     close the viewer (but only if the target is found, and is another PGC.)
  E. SetSTN: Changed the labels for audio value 15 and subpic 62 from 'set to
     none' to 'not set', which IMHO is more coherent.
  E. PGC Editor: New tooltips on the stream assignments buttons.
  F. The stream numbers in the PGC selector were starting at 1 instead of 0.
  F. The subpic stream assignment slider range was 0 to 15 instead of 0 to 31.
  F. The VTS Sectors adjustment was wrong with empty (0 byte) menu VOBs.
  F. Command Editor: Little bug fixed when a value field was empty and the "B"
     button was selected.


0.3.8 (November 8, 2004)
  A. New Edit -> Append to Scratchbook function to add the selected commands
     directly to the scratchbook.  This option is also available in the menu
     buttons viewer (with the clipboard functions.)
  E. PGC Editor: added the ability to edit the PG Playback Mode (sequential,
     random or shuffle mode.)
  E. It is now possible to paste commands in full text format (copied with
     'Copy as Text') directly in the main listbox.  Note that the *** labels
     are not pasted: you may therefore paste the pre, post and cell commands
     in one operation, but all commands will be pasted in the same section.
  E. New option "Include [hex codes] in Info / commands dumps ?".
  E. Help -> ISO639 Language Codes now lists also the decimal and hex values.
  F. Since CSetCLnk, CSetLnk and SetCLnk must have an IF condition, the IF
     checkbox has been removed from the GUI.
  F. Now, the "New 'Play All' Title" utility display the new TTN number in the
     PGC selector.
  F. Undo now mark the DVD as modified.

0.3.7 (October 31, 2004)
  A. Blanking a cell (in VOB/Cell ID remapper) works now for all platforms.
  A. It is now possible to enter an ASCII string (for example a language code)
     in any numeric field of the Command Editor by prefixing the string with '
     (single quote character, aka apostrophe).  Example: 'en = 25966
  E. PGC Editor: GoUp (Return) value can now be Resume (0xFFFF) for a Menu PGC.
  E. "Enable Navigation Buttons" has now an option to enable the GoUp (Return)
     button to resume to the Title domain from any non-dummy Menu PGC.
  E. Calls Cross References: now display also the PrevPGC, NextPGC and GoUpPGC
     links, but do not display any more the calls to the same PGC.
     The never-called PGCs list is therefore more accurate.
  E. Disassembly:  New error messages:
     Set gprm(n) ?=(rnd) <ILLEGAL VALUE 0 FOR ?=(RND) OPERATOR>
     Set gprm(n) /=(div) <ILLEGAL VALUE 0 FOR /=(DIV) OPERATOR>
     Set gprm(n) %=(mod) <ILLEGAL VALUE 0 FOR %=(MOD) OPERATOR>
     (SetAMXMD) Set Karaoke Audio Mixing Mode =(mov) <ILLEGAL VALUE 1...>
     (SetGPRMMD) Set gprm(n) =(mov) <ILLEGAL SPRM OPERAND sprm(n)>
  E. The value field of SetAMXMD is now replaced by 6 checkboxes in the GUI.
  E. Selecting an item in the Command Editor menu "Numerically -> 40-D0: Set"
     now update the value/GPRM/SPRM radiobuttons automatically in the GUI.
  F. As the SetGPRMMD source operand may not be a SPRM, the SPRM option has
     been removed from the Command Editor GUI.
  F. 'Blank all PGCs in Domain' now correctly update the video, audio and
     subpic attributes in VMGM_MAT/VTSI_MAT/VMG_VTS_ATRT tables.
  F. 'Blank all PGCs in Domain' (when blanking w/o kill playback): the video
     was sometimes unplayable.  Now fixed (thanks to jsoto)
  F. Command Editor: The maximum number of PGCs is now 32767.  (Was 65535)
  F. Set used with AND, OR, XOR or RND was unable to disable the LinkNoLink.
  F. GOTOs in pasted lines with Paste Replace were renumbered in some cases.
  F. New PGC: When creating a new PGC in the Title domain, the VTS_PGCI table
     is now correctly updated.
  F. Target highlighting and "Jump To Target", when used in a multi-PGC title,
     were unable to find the target of JumpVTS_PTT and LinkPTT if the chapter
     was in another PGC belonging to the same Title.
  F. Error launching PgcEdit when the TEMP directory is not writable trapped.
  F. Error in the Uninstall procedure fixed.
  Note: most of the bug fixed in this release were discovered by 2COOL.  See
  http://forum.doom9.org/showthread.php?s=&threadid=79853&perpage=20&pagenumber=12#post562497

0.3.6 (October 20, 2004)
  A. Added the "PGCs params and Cell table" menu to dump all PGCs.
  A. Added the "Remove Parental Management" utility.
  A. Thanks to jsoto, The VOB/Cell ID remapper (in the PGC Editor window,
     VOB/Cell ID buttons) has now the ability to append a new blank cell to
     the VOB. Handy to blank out a specific cell. Currently for Windows only.
  E. Changed the "Info/PGC commands" to "Info/PGC".  Now, dump also the PGC
     parameters and the Cell Table.
  E. "Find Unused GPRMs" now search also for GPRMs in the menu button cmds.
  E. In the disassembly of integer values, the ASCII equivalent of the value
     is now displayed only if it is a valid language code.  (No more "..")
  E. The first column of the Cell Table in the PGC Editor is now the Number of
     Buttons for a Menu PGC (and still the Chapter Number for a Title).
  E. New popup menu on the Search fields of the main window and the text
     viewer, to clear, copy and paste in the search field.
  E. The Copy and Cut buttons in the main window are now placing the command
     in the clipboard without the "{" and "}" characters if only one command
     is copied/cutted.  Handy to paste the hex codes in the search field.
  E. Command Editor: When pasting in the hexadecimal field, the command is now
     automatically validated, and transferred in the GUI.
  E. The number of buttons shown in the PGC labels is now "?b." if the VOB
     file is missing or not readable.  Was "0b." before.
  E. Now, the "Cell Type Flags" editor doesn't allow to select an Angle Type if
     the Angle Block flag is not checked.
  E. "Kill PGC Playback" changes now also all Link to Cell, PG or PTT pre
     commands to GOTOs (only if the Highlight Button parameter is not used.)
  E. Documentation updated (and english doc corrected.)
  F. "Kill PGC Playback" will now remove the post commands after a Kill if the
     total number of commands exceeds the fatal limit of 128.
  F. "Import First-Play Clip" and "Import Title's Intro Clip" bugs fixed.

0.3.5 (October 4, 2004)
  A. The menu buttons informations are now available also for Mac OS X users.
  E. Blank Out all PGCs in Domain: added a confirmation dialog when overwriting
     the backup of the VOB file.  Tooltips added for all options.
  E. The PGC selector may now be placed on any side of the main window.  The
     PGC labels are now more legible.
  E. Tools configuration: Added argument substitution %n (Number of TitleSets)
  E. New option "Use file browser instead of folder browser for Open/Save
     folder operations?"
  F. Fixed a big bug with TTN number: was always the PGC number.  The Title's
     entry PGC number were therefore also wrong.  The TTN numbers are now
     correctly retrieved from the VTS_PTT_SRPT tables.
  F. Open DVD: It is now possible to open a DVD located in a directory even if
     a VIDEO_TS subdir exist in this directory.  The VIDEO_TS directory is now
     automatically selected only if there is no VIDEO_TS.IFO in the parent.
  F. Set DVD-Text General Name: maximum string length bug hopefully fixed.
  F. The total time of a multi-angle PGC is now calculated for Angle 1 only.
  F. Command Editor CSetCLnk and CSetLnk bug fixed: When the IF 2nd operand is
     a value AND the IF checkbox is off, the Set's Value option was disabled.
  F. Missing file in the source archive added.

0.3.4 (September 12, 2004)
  A. Toolbar.
  A. Added "Info/Calls cross references": displays the calling commands for
     each PGC, and a list of all never-called PGCs.
  A. Added "Help/ISO 639 Language Codes", also available from the "Streams
     Attributes" dialog.
  A. There is now a wrapped, standalone executable for Linux users.
  A. Added the Menu Buttons infos and "Show Menu Buttons" GUI for Linux.
  A. "Utilities/Domain Stream Attributes" GUI allow now to change the
     Automatic Letterbox, Automatic Pan&scan and Top/Bottom Cropped modes.
  A. Added the number of chapters, programs and cells in the main label.
  A. Added the total number of buttons (for all cells) in the menu PGC labels.
  A. "Utilities/Show Menu Buttons" has now a Copy to Clipboard menu.
  A. Added 3 screen size options for the "Show Menu Buttons" function, and
     this window can now be iconified.
  A. Added the "Options/Show libdvdread warnings when parsing menu buttons?".
     Libdvdread (used to retriebve the buttons informations in the VOB files)
     is very intransigent with non zero values when they should be zero.
  E. The "Menu Buttons" window will now display also cells without buttons (if
     there are buttons in other cells of the current PGC.)
  E. The cell playback time is now displayed in the "Menu Buttons" window.
  E. Miscellaneous little GUI improvements for Linux (and Mac?)
  E. In the Command Editor, it is now possible to enter a button value by
     clicking on the "B" button to the right of the numeric widget.
  E. The kill playback option of the "Blank Out all PGCs in domain" may now
     kill the playback even if there are cell commands in the PGC.
  E. "Find Unused GPRMs" now display also the usage count of the used GPRMs.
  E. The "Show Menu Buttons" function now display by default the first cell
     that has buttons, instead of cell 1.
  E. The "Enable All Operations" macro now clear also the PUOs in the Title
     Play Map table (VMG_TT_SRPT) if the PGC is in the Title domain.
  E. Added tooltips in the "Menu Buttons" window.  On the menu buttons: button
     command, and on the cell selector: first NAV pack LBA.
  E. Added tooltips in the Command Editor for some confusing options.
  F. Fixed bug in Import Menu function (some players were not able to display
     the menu buttons overlays.)
  F. SetSTN: Set subpicture to forced now sets the correct subpic value (0xFF).
  F. The Menu Buttons's Jump to Target will now work as expected for Link
     commands.
  F. The "Streams Attributes" dialog now prohibit entering invalid language
     codes.
  F. button_dump.exe isn't called any more when the menu VOB file is empty.
  F. The post and cell commands numbers are now correct in "DVD Dump".
  F. All menu buttons are now detected.
  F. The Link to Target feature in the "Buttons Window" works better.
  F. Bug when the Forced Select Button value is too high in the VOB file fixed.
  F. Bug starting PgcEdit when the "Tearoff Menus" option is off fixed.
  F. Fixed the wrong Title number bug.
  F. Fixed Renumber GOTOs problem when using Paste Replace over a target line.

0.3.3 (August 4, 2004)
  A. Added the "Utilities/Show Menu Buttons" function: pops-up a window with
     the menu buttons layout. The command of the current button is displayed,
     and one can use the cursor keys to select the buttons like with a remote.
     The "Jump to Target" button allow to load the target PGC of the current
     button command in the main window (if applicable). (Windows only, for now)
  A. "Info/Menu button commands" shows the button commands in all VOB/Cell IDs
     of all Menu VOBs.  (Windows only, for now)
  E. "Info/DVD Commands" and "Info/PGC Commands" are now showing also the menu
     buttons commands, if any.  (Windows only, for now)
  F. The Cell Still Time in the cell list of the PGC editor is now limitted to
     values between 0 and 255, as it should be.
  F. "New 'Play All' Title" is now limitted to 255 cells in the new Title PGC.
  F. The Chapters numbers are now correctly displayed in the PGC editor cells
     table.  Was wrong for titles spread over several PGCs.
  F. "Blank Out All PGCs in Domain" now correctly update the duration times
     displayed in the PGC selector when blanking with an imported title.

0.3.2 (July 27, 2004)
  A. "New 'Play All' Title" utility: create a PGC with all the VOB/Cell IDs
     of the current VTST. May be used to play together multiple episodes, or
     to 'backup' the VOB/Cell IDs before remapping them in the PGC editor.
  E. The title or menu duration time is now displayed in the PGC selector.
  E. "Set DVD-TEXT General Name" can now recognize all configurations, and
     set also the DVD-TEXT "Volume Movie Name".  However, the utility still
     can change the names for the first DVD-TEXT Language Unit only.
  E. Added some Links in the "Jump and Call" menu of the command editor.
  E. Moved the 'New DVD' and 'Import VTS Titles' functions in the File menu.
  F. Big bug with VOBU_ADMAP table being trashed when blanking a titleset
     with an imported clip fixed.
  F. "New DVD" and "Blank Out All PGCs" bugs in standalone EXE fixed.
  F. Bug when importing from a VTS number > 7 fixed.
  F. Jump to target for title > 15 was not working.  Fixed.
  F. Little problem with the create new folder option of the Browse for Folder
     dialog that was repeating the current folder name twice fixed.
  F. It is now possible to enter hex values with "0x" (needed "0X" before).
  F. Message "DVD Modified" appearing too late when doing "New DVD" fixed.
  F. Little window initialisation bug appearing in rare circumstances fixed.

0.3.1 (July 20, 2004)
  F. Bug when trying to read a DVD from a read-only filesystem with the "Create
     Backup when a DVD is opened for the first time" option ON is fixed.
  F. Bug preventing (in extremely rare occasions) to open the Command Editor
     with the correct window width fixed.

0.3.0 (July 18, 2004)
  A. Added the "Blank out all PGCs in Domain" utility: replace the VTST, VMGM
     or VTSM VOBs by a black frame and inhibit the playback, or by a still
     frame, an animated clip (aka 'feature disabled' clip), or a menu (allow
     to use BOV (Button Over Video) to continue).
  A. Added the "Enable Navigation Buttons" utility to be able to use the Prev
     Chapter, Next Chapter and Return (GoUp) buttons of the remote anywhere.
  A. Added same options in the "DVDShrink Title Button" macro and renamed it
     to "DVDShrink Remote Buttons" to reflect the changes.
  A. Added the 'Enable All Operations' macro: Clear all PUOs and enable the
     'Prev Chapter', 'Next Chapter' and 'Return' buttons for the current PGC.
  A. Added the 'Swap menu LUs' utility: allow to change the default (first) LU.
  A. Added the 'Copy LU cmds to other LUs' utility: allow to edit the commands
     in one LU, ant then copy them to all other LUs.
  A. Added the "New DVD" utility: create an empty VMG (VIDEO_TS.IFO) that may
     be used as a basis to import external titlesets and menus.
  A. Added the "Save current scratchbook as default" option.
     Using Undo in scratchbook reloads the default scratchbook commands.
  E. The Set + Link commands were missing from 'Edit/Jump to Target' function
     and from target highlighting.  Added.
  E. "Kill PGC Playback": Added option to clear the Program and Cell tables.
     (Only for Menu PGCs.)
  E. The VTS parameter of the JumpSS-VTSM command is now allowed to be 0.
  E. The config files are now stored in "<Homedir>/Application Data/PgcEdit/",
     under Windows (but still in "<Homedir>/" under Linux and Mac).
  F. Bug when doing a 'Paste Replace' with a 'pre', 'post' or 'cell' label in
     the current selection fixed.
  F. The link description was wrong for CSetCLnk and CSetLnk commands.  Fixed.

0.3.0beta (July 7, 2004)
  A. New "Macros" menu.  ("Kill PGC playback" and "DVDShrink Title Button"
     moved here)
  A. Added the "Import First-Play Clip", "Import Title's Intro Clip" and
     "Import Title's Closing Clip" macros: Automatically play an imported
     still frame or animated clip at DVD startup, or before or after the
     current title.
  A. Added the "Reset Used GPRMs to 0" macro.
  A. Added the option "Automatically renumber GOTOs upon cmds insert/delete".
     Warning: does NOT renumber inserted commands (with paste or duplicate)!
  A. Added the option "Highlight domain errors and GOTO targets":
     Goto targets lines are permanently highlighted in light yellow, and
     out of range Gotos and illegal commands for current domain in pink.
  A. Clicking on a Jump/Call/Link command now highlight the target PGC.
  A. Added "Edit/Jump to Target" menu: Jump to Goto/Jump/Call/Link target.
     (also available with the middle mouse button, or Ctrl-left mouse button)
  A. PGC Editor Cells list: Any cell may now be linked to a different VOB ID/
     Cell ID.  May be used to reuse the same VOB cell in multi-episodes DVDs,
     and blank out (or compress at maximum) the old (now unreferenced) cell.
  A. Command Editor: The command label is now a clickable button that lead to
     the current command description on the DVD-Replica web site. (For Windows
     users only).
  A. Added the "Help/Homepage" menu. (For Windows users only).
  E. The popup menu in the PGC Selector (left pane) is now context sensitive.
  E. Changed the PGC labels and some command names to be more 'DVD standard
     compliant'
  E. The LinkNoLink DVD command was missing.  Added.
  E. Changed the syntax of JumpSS-VTSM (TTN parameter).
  F. The "Kill PGC Playback" method was not working on all players.  Fixed.
  F. CallSS-VTSM command disassembly was "Call the VMG menu..." instead of
     "Call the VTSM menu..."
  F. Fixed some Linux-only GUI problems and bug when starting PgcEdit.
  F. Miscellaneous small bug fixes and enhancements.


0.2.1 (June 27, 2004)
  A. New "Find" GUI integrated to the main window (and "Options/Set current
     search string as default" menu)
  A. New "Region Code" utility, with optional search for sprm(20) in DVD cmds.
  A. New "Edit/Undo cmds changes" menu.  Undo (limitted to the current PGC).
  A. New "Edit/Copy as text" menu.
  A. New menus to Import and Export current PGC commands, or all PGCs at once.
  F. Bug starting PgcEdit.exe when the .IFO file association is corrupt in the
     registry this time hopefully really fixed.  [edit: confirmed]

0.2.0 (June 24, 2004)  (fixed - incorrectly named 0.1.3)
  A. New "Import VTSM Titles" utility: append VTS from another DVD.
  A. New "Streams Attributes" utility: set video aspect and language codes.
  A. New "Set Menu Type" utility: set Title, Root, Audio... menu type.
  A. New "Display commands as text" utility, useful to copy/paste to a forum.
  A. New Info menu. (Informative-only utilities & "Dump DVD Cmds" moved here.)
  A. New "File/Kill" menu: Exit immediately (no confirm, no save setups.)
  A. New "File/Explore DVD folder" menu (for Windows users only.)
  A. New popup menu in the PGC selector.
  A. The PGC Selector active item is now updated when another PGC is selected.
  A. The active item of the PGC selection menu is now checkmarked.
  A. Added a plus sign to the labels of the Menu PGCs with video programs.
  A. The keyboard shortcuts are now displayed in the Edit menu.
  A. Browsing the PGC selector with the keyboard (up and down keys) now
     automatically update the current PGC and display it in the main window.
  A. Option "Expert Mode" (suppress most popup dialogs.)
  A. Status bar.
  A. Allow to back-up the VOB files when PgcEdit must delete them.
  F. Bug reading a DVD without a First-Play PGC fixed: a new PGC is created.
  F. Bug sourcing PgcEdit.tcl from a Tcl/Tk interpreter (Wish) fixed.
  F. Bug starting PgcEdit.exe when the .IFO file association is corrupt in the
     registry fixed.  (edit: not really fixed in all cases.  see v0.2.1)
  F. The VMG_VTS_ATRT table is now recreated from scratch on Save DVD.
  F. Reading data after end of table error now handled a little better.
  F. SetNVTMR was allowed to jump to PGC 0. Fixed.


0.1.2 (June 15, 2004)
  A. "New PGC" utility: create a new, dummy PGC.
  A. PGC Editor: The PTT (chapter) numbers are now displayed in the cell list.
  F. Problem starting PgcEdit on a machine without a C: drive fixed.
  F. PGC Editor: Wrong label in cell list. Start Time changed to End Time.

0.1.1 (June 14, 2004)
  A. Homepage and contact information in About dialog box.
  A. Version History in the Help menu.
  F. PGC Editor: Copy/Paste Color Table bug fixed.

0.1.0 (June 13, 2004)
  First release.

-------------------------------------------------------------------------------
PgcEditPreview by jeanl.

Version 2.8
- Added playback of audio. Only AC3 and LPCM streams are supported.
- Added a key (PlayAudioStreamID) in the .ini file, to specify which stream to
  play. 0 for no audio playback, 128 for the first AC3 stream etc.
- Added option to introduce a pause in the playback between two cells, to help
  visualize the layer-break.
- Added support for ILVU (interleaved units, used in angles), which makes it
  possible to follow a given angle, as a normal player would.
- In the DVDPreview code: added support for audio, ILVUs, and still-frames.
  Added code to reduce the frame rate for slower machines, when playing with
  audio. Fixed a few minor bugs, and probably introduced a few new ones!
- Changed the time-stamp display from hundredths of seconds to frames.

Version 2.7
- Added key in the ini file (RealTimePlayback) to tell the preview to display
  videos at the normal video rate.
- Fixed a bug in the display of the hours in the time-stamp of the info window.

Version 2.6
- Added a CLI option to pass the ReturnFilePath in the INI file.  This is
  necessary to support the options Close and Break Trace and Blank this Cell
  under Linux.

Version 2.5
- Made a small change to make the preview behave better in VISTA.

Version 2.4
- Added display of absolute LBA in system bar. The last absolute lba is written
  in the return file.

Version 2.3
- Incorporates many changes in the DVDPreview class (but this should have no
  bearing on pgceditpreview).
- Added argument option (in the argument ini file) to prevent pgceditpreview
  from quitting too quickly.
- Added argument option to set the blank checkbox by default.

Version 2.2
- Added support for a blank checkbox, for PgcEdit. A "preview_return.tcl" file
  is created %TEMP% with return data for PgcEdit. Currently set preview_break
  and set preview_blanking.
- Close and break trace no longer causes pgceditpreview to exit with a code 1.
  Rather, the return file is used to tell pgcedit that that button was clicked.
- pgceditpreview returns with a non-zero code if something went wrong while
  opening the files.

Version 2.1
- Fixed the overlay buffer pointers that were not set to 0 when "no overlay"
  was selected.
- Now allocating oversized blocks to avoid crashes that have been seen with
  (probably) faulty mpeg data. (see the Taelon posts on this page
  http://forum.doom9.org/showthread.php?t=92481&page=8&pp=40)

Version 2.0
- Fixed a bug that occasionally caused the buttons from the next VOBU to be
  displayed instead of the ones in the current VOBU.
- Fixed a bug introduced in the previous version that caused the overlay mixer
  to never be used.
- Fixed an old DVD2AVI bug that occurred when attempting to go to the first LBA
  of a VOB in the middle of a large title (for example the first LBA of
  VTS_01_3.VOB).
- Added the current VOB number to the LBA display in the info panel.

Version 1.9
- Displays the menu buttons outlines in info mode.
- MFC42.DLL is now dynamically linked with the executable.

Version 1.8
- Fixed a bug in original DVD2AVI code that caused the CELLID to be incorrectly
  read from the VOB file in some rare instances.
- Enabled the original code to avoid an extremely rare problem where DVD2AVI
  finds a SEQUENCE_HEADER_CODE in the first navpack.

Version 1.7
- Added flag to control overlay mode.
- Changed bitmap saving mode to never make any direct-draw call.
- Added code to save bitmap as PPM file, instead of BMP, if needed.
- Option to save the image in PPM format from the GUI, by shift-clicking the
  BMP button.

Version 1.6
- The "small" button now always yields a smaller view (wasn't always the case).
- Fixed Display Aspect Ratio (DAR) problem. The DAR was simply not correct in
  all cases, and the x/y scaling factors were not calculated from the video
  coding size. This has been fixed.
- Fixed bitmap saving bug that caused the bitmap to be invalid in some cases
  (width was not a multiple of 4).
- Fixed display problem for videos with a vertical size of 240 (generally
  vertical sizes not multiple of 32).

Version 1.5
- Fixed a rare problem where preview was displaying black frames instead of the
  video.

Version 1.4
- Improved error reporting in bitmap saving mode.
- Fixed a bug that prevented preview from loading some VOB files in bitmap
  saving mode.
- The elapsed time was wrong in some cases (STC discontinuity), I'm setting it
  to 0 if the audio pack has no PTS.
- Fixed a bug that caused an image to be displayed in the improved bitmap-
  saving version of preview.
- Rolled in most changes made by jsoto for vobblanker.

Version 1.3.1:
- Fixed bug in DVD2AVI that caused the VOB/CELL ID of the next Nav Pack to be
displayed in some cases.

Version 1.3:
- Added command line arguments to check VOB/CELL ID and Number of buttons when
  used to dump bmp file.
- PgcEditPreview can be used instead of dvd2bmp, given the right number of
  arguments.
- Added code to read the number of buttons in the vob file, displayed in the
  INFO panel.
- Preview now returns the focus to PgcEdit (most of the time!).
- The UI is no longer disabled during playback.
- Fixed bitmap header problem.

Version 1.2:
- Fixed remaining fast-exit crash problem.
- Fixed problem related to loading invalid VOB files.
- Added code so standalone version resizes according to DAR in video.
- Added old DVD2AVI info dialog. Position is saved in preference.
- Added Close & Break Trace button.
- Close & Break Trace buttons are now hidden in standalone. One of them is red.

Version 1.1:
- Packaged DVD2AVI code to be used in another application.
- Added x-axis and y-axis video scaling, in both overlay and RGB mode.
- Added .ini file parsing for control from PgcEdit.
- Added .ini file code for preference settings.
- Added code to kill other instances of preview.
- Added AutoLocate code to find last frame in a given cell.
- Added support for "discontinuous" PGCs.
- Added code to disable UI for single-frame cells.
- Added code for Pausing, and Quitting.
- Added code to halt playback at a specific sector.
- Fixed problem with overlapping cells.
- Added tooltips, error messages in debug mode.
- Fixed fast-exit crash problem.