How to export/extract audio from a DVD under Fedora 14?

Question

i have a DVD's content on my HDD: i have these 2 usually folders, ok:

AUDIO_TS
VIDEO_TS

I just can't google a working way to extract the audio from the DVD. the howtos usually write about when the dvd is in the ODD. but i have it on my HDD, and don't want to burn it to a dvd (there are several dvd's exactly).
Are there any good way to extract the audio part from the DVD?

my original problem is that i want to convert them to h263 "AVI". But theres no sound when i open them with avidemux. but: i can import sound files to avidemux, if i had them.

Answer 1

mplayer dvd://1 -dvd-device /path/to/copy_on_hdd/ -dumpaudio -dumpfile audio.ac3