What makes Mpeg 2 a .vob

[dxj40c]

I have noticed that I can change the .vob extension to .mpg and it will play in some applications. However, if you try to import it into a video editing application I usually get the message "...unsupported format". Is there some kind of 'header' or something that needs to be changed? If so, how?

[freestyler]

Multiplexing is what makes a vob and it's done in the authoring process.

Demultiplexing gets you the elementary streams (MPEG file, Audio, Subtitles).

I know that Vegas Video accepts VOB files. Which program are you trying to use VOBs directly in?

[ZippyP.]

Vobedit can demultiplex into elementary streams.

Mpeg video wizard and TMPGEnc DVD author can accept VOB's for editting.

[bottle-necked]

Since a Vob file can contain more than one audio stream and subtitles simply changing the extention to .mpg doesn't look like such a good idea. I suppose the standard technique is to DeMultiplex the video stream and your desired audio stream from the vob file, then Multiplex them into a MPEG file. Tmpgenc is my choice of programs for this.

Good luck.

[dxj40c]

That explains why the changed files are sometimes in another language. Yes, I could open .vob in VEGAS, but it only loads part of the file (I suppose to the first chapter break).

I was just trying to save a little time.

Thanks.