20 minute VOB files only show on timelines as 1 minute long!

[pbush77]

Anybody know what causes this? They play okay, which leads me to think the correct timeline is referred to in the corresponding IFO file or something. However, it's causing chaos for me while trying to edit them. Does anybody know what is causing this corruption? How can a full 20 minute clip be fully contained within 1 minute??? If you leave it to play, the full clip shows, but trying to scan along or edit is impossible.

[pbush77]

Any ideas?

[jarvis1781]

you would get more replies if you started off by saying what programs you are trying to use. none of us can guess what you are trying to do...
let us know more information and then we might be able to help

[dcsos]

If you talk about media player please use MPEG audio or 44.1 KHZ samples
as
48K audio or AC3 audio will cause the media player to display the wrong duration

don't know why either

[pbush77]

It's probably the AC3 audio or something then.

I can't say what programs I am using, because it happens in ALL of them. The files (especially VOB ones) can be played in BS Player, Nero Showtime, Windows Media Player, Power DVD - even in TMPGEnc DVD Author they show as having only one minute of duration! Yet if you scan along you can see that the full 20 minutes is somehow contained within this corrupted timeline. Pretty crazy, but it's not an isolated incident.

[jarvis1781]

It's probably the AC3 audio or something then.

I can't say what programs I am using, because it happens in ALL of them. The files (especially VOB ones) can be played in BS Player, Nero Showtime, Windows Media Player, Power DVD - even in TMPGEnc DVD Author they show as having only one minute of duration! Yet if you scan along you can see that the full 20 minutes is somehow contained within this corrupted timeline. Pretty crazy, but it's not an isolated incident.

what I meant when i asked what programs you are using is "what programs are you using to make the video streams???" "what programs are you using to recompile/demux???"

obviously that is where the problem lies since every player you tried has the same issue with the time code

[pbush77]

Oh. None, actually. See, here is the thing. I rip the VOB files from a dvd which somebody else made. Those are the corrupted files. I've no idea what that person used to encode the files, but presumably that is the cause of the corruption. However, if I demux those files with vobedit, and then re-encode them with TMPGEnc, the timeline is restored. I just wondered if anybody knew the cause of this initial corruption, as it makes it necessary for all this re-encoding.

Also, I should point out that these are recorded shows from television, which I believe were later transferred to dvd from vhs. I've heard about timebase correction for this process, so I presume that the problems started in that initial transfer from vhs to dvd. One thing I would like to know, is if anybody that has come across it before knows what program causes it. I'd like to avoid that if possible!

[dcsos]

Its not corrupt..

The software you are using is expecting an MPEG STREAM not a VOB therefore the HEADER information as stripped from a dvd is whats f*cking things up
So it says its corrupt but that not srtictly the case

Try another program which may accept VOB's ina "un fixed" state