OT: extracting audio from DVD

[Filippos Klironomos]

>
> mplayer -ao pcm -aofile "$file.wav" -channels 2 -vc dummy -vo null dvd://$track
> 

So this seems to work only I had to tweak a bit and add

-chapter $n

and take away the $track which actually was $title. 
This is almost what I want though since I am interested in specific
parts of each chapter where the musical plays. The problem is that if
I use

-ss hh:mm:ss

it probably is the absolute time in the DVD duration but if I turn on
OSD the time that reports ion screen s the relative to the current
chapter. Is there a way to convert the one into the other (it doesn't
matter which to which) so I can have a common referece frame in time
and note down the duration times of the music from each chapter and
then rip them.

Thanks guys, in half a day I learned the 'mplayer' intricate commands
with your help.

F.