Problem with cell-skipping commands

[WIGGER]

Hello to all of you!

I need to reauthor Avatar Extended Collectors Edition PAL version because it is not avaialble in my country with adequate subtitles. Hence I bought it and would like to add subtitles. This special edition contains Theatrical, Re-release, and Collectors edition version of the movies plus Extras, all 3 discs in total. All 3 movies are splitted on DVD1 and DVD2 and DVD3 is extras only. This means you have half movie on DVD1 and another half on DVD2 (for all versions).

(I though) I'm experienced and didn't expect to have any problems. Unfortunately I was very surprised when it turned out that DVD1 has 3 movies in the IFO file and after I demuxed all 3 I had... 13GB files! I started reading all around and it seems that actually it is only 1 movie with some special commands (gprm) which determine whether you watch or not the adiitional scenes which makes the difference between all 3 versions.

Can anyone tell me how to demux video/audio/sub files and to add additional subtitles in this case? Normally I use DVDLab Pro to create the new sub stream and them IFO Edit method to author new DVD keeping existing subtitles. Some people already told me I should totally re-author with Scenarist or similar (manually to create those cell-skipping changes) but I still hope there is another way to do it.

Thank you in advance!

http://forum.videohelp.com/attachment.php?attachmentid=10620&d=1327258727

[Ghitulescu]

I don't have Avatar, but from the images you posted it seems to be the same authoring pattern as for many other Dir/Theat/Normal versions (like Salt) - multiple PCSs (no commands at all, other than those used for copyright purposes).
Pick the one you need and add subtitles as usual. If you want all of them, you need to add subtitles at cell level, a lot of work.
And yes, you can do this with freeware only :)

[WIGGER]

Just in case I'll share some more information which led me to the idea of special GPRM commands.
It is possible to demux each version in separate files and than you got about 4,5 GB files for each movie. Also, you can rip in AVI format each movie (done it to synchronize the Bulgarian subtitles).
For now I'll try to combine the 2 parts from DVD1 and DVD2 of the Collectors edition with MuxMan, add subtitles with DVDLab Pro and put the whole thing back in DVD1 via VobBlanker to keep the menu. But I'm still open for any ideas ;)

[rik1138]

I don't have Avatar, but from the images you posted it seems to be the same authoring pattern as for many other Dir/Theat/Normal versions (like Salt) - multiple PCSs (no commands at all, other than those used for copyright purposes).
Pick the one you need and add subtitles as usual. If you want all of them, you need to add subtitles at cell level, a lot of work.
And yes, you can do this with freeware only :)

It's not completely separate PGCs, it's done with seamless branching, which is very tricky to do on DVD. There's all sorts of things to consider like bitrates, number of audio streams and subtitles streams, etc... Seamless branching will use the same piece of video in each version of the movie if it's unchanged, and then will 'jump over' certain areas that are changed (this is done with the PGC structure, not cell commands). If you look in the VIDEO_TS folder, I bet there's a lot of VOB files there, and none of them are probably very large. They are combined together in a specific order based on what version of the movie you selected. (I don't have this on DVD, so I can't verify that for sure, but this is the only way to put 3 versions of a 90+ movie on a single disc and keep it looking good... :cool:)

It's very likely you will not be able to add subtitles to it and put it back together exactly the way the original disc is built. I'd say pick the version of the movie you want to see, demux that and add your subtitles, and make a movie-only disc of that version...