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Old 12th May 2017, 08:28   #21  |  Link
LigH
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Quote:
Originally Posted by Sir Didymus View Post
Nevertheless what you get is that if you start with legit individual VOBs and you join them with a straight and simple binary copy without recalculating all of the involved PTS and DTS and SCR timestamps, you can not avoid these "2 hours" jumps and discontinuities among the chunks...
That's why I would not recommend joining content from several DVD media, only extract one PGC to a continuous file – which won't get much bigger than 8 GB from a full DVD-9 (flipping a DVD-18 means extracting a different PGC and keeping that one separate from the first).

Pointing again at the VideoHelp thread: There is a PGC #01 with a duration of 01:23:32.12 h; but PGCDemux will extract it either in segments of 1 GB each, or split it at VOB-ID's into parts of 00:39:16.09 h and 00:44:15.16 h. To extract the whole PGC to one PGC-VOB file with only one application, you may have to use vStrip (or a full featured DVD ripper) instead.



I don't intend to argue "Why would someone want to do that" a lot; just discover a technical limitation: If anyone wanted to do that, there may be DVD content where PGCDemux would not be able to do that.
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Last edited by LigH; 12th May 2017 at 08:34.
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Old 12th May 2017, 09:25   #22  |  Link
Ghitulescu
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SCR discontinuities are not a problem, in the worst scenario the player stops for a splitsecond.
Joining two parts of a movie or anything like that is not a problem. The movie was anyway split in two or three parts by the studio and ALWAYS involved a physical split where the logical information (the action) changes. For instance where the commercial breaks kick in etc.

Joining VOB files that came from the same movie is not a problem, because they are split anyway with the axe when the file size reaches 1GB

And SCR discontinuities may be even corrected by some software that compute and rewrite the timecodes.


PS: surely, some problems may still exist when one joins in a less-smart video editors parts from different movies/VOBs/MPGs.
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