extract ac3 sound

[umitking]

I want to extract ac3 sound from vob files or directly from DVd without encoding video.
Only extract sound...

Which is the best software for this?
Which one do you propose to me?

[setarip]

VOB2Audio

[Enchanter]

DVD2AVI will do the job as well. Just open the group of VOB files that comprise of the whole movie, go to the Audio tab and select the desired track number (most of the time, it's Track 1). Check that you have selected Demux in the Dolby Digital section.

[UncasMS]

here is how to use VOB2AUDIO:

http://www.atlandide.net/~uncasms/en/index.php?page=sound

and here DVD2AVI:

http://www.atlandide.net/~uncasms/en/index.php?page=gordian