[MPlayer-users] Can't extract audio from a VOB file

[John Brown]

>I'm trying to extract the audio track from a VOB file using the following
>command:
>     mplayer LSE0NNW11-1.vob -vc null -vo null -aid 128 -ao pcm 
>-noframedrop
>
>I end up with an audiodump.wav file that is only 3 seconds long.
<snip>
>If I actually PLAY the video and save the audio while it's playing then
>I am able to extract it successfully, but then I have to wait through
>the entire movie:
>     mplayer LSE0NNW11-1.vob -aid 128 -ao pcm -noframedrop

try:

mplayer -dumpaudio -dumpfile <your-file-name>

This process is very fast. It should not take more than a few minutes.
An NTSC DVD can contain AC3 or PCM audio, and a PAL may contain
AC3, PCM or MP2. If you require PCM and the DVD iaudio sn't already
PCM, you will have to convert it.