[KLUG Members] Converting a VOB to an MPEG
Bruce Smith
bruce at armintl.com
Mon Aug 22 10:50:56 EDT 2005
> > > How does one go about turning a VOB video/mpeg file of a DVD back into a
> > > "normal" MPEG file? I've copied the file from the DVD to my home
> > > directory, and it plays in gmplayer, but Mac's iMovie doesn't want to
> > > open/import it ("Invalid Format"). Doesn't open in iDVD either.
> > My memory is sketchy on this, so this may not be worth much.
>
> Doesn't seem so. I only copied off one file and it plays with audio.
>
> Kino also will not open it.
I think the DVD separate video & audio streams are not real standard as
far as PC media files are concerned, so I'm not surprised.
> > IIRC, a DVD has it's video and audio in two separate files.
> > There are a number of Linux programs that will combine them.
> > (if that's what you're asking :) It's also MPEG-4 (I think).
Make that MPEG-2 above, sorry.
> > Command line programs that either split or combine them, or have
> > something to do with the overall process - to get you started:
> > mplex, tcmplex, replex, mpeg2desc, dvdauthor.
> > One with a nice GUI is: avidemux2
> > Good luck! :-)
> Thanks.
Personally I'd start with avidemux2, unless you're trying to automate it
in a script. That GUI is really nice.
I also recall an intermittent problem of the two streams getting out of
sync. The people's lips don't match what they're saying, like you're
watching a dubbed movie. Let me know if you run into that problem, I
have some notes somewhere on how to fix it.
Also note that I was trying to go the opposite direction you are,
creating a DVD from a single MPEG-2 file. So, YMMV! :-)
Also, when/if you get the files combined into one stream, MPEG-2 is
basically uncompressed and REALLY BIG. Re-encoding it to something like
MPEG-4, divx, or some other codec will save you a TON of space.
- BS
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