[MPlayer-users] 2 Audio Streams in a DivX file

[Draco]

Hello,

MPlayer supports playing 2 audio streams (-aid 1/2) in DivX Movies made by 
avimux in Windows.
Now I want to make such a movie with mencoder...

I completely ripped the movie, and it has DivX format (libavc: mpeg4) and 
an 2.0 channel AC3 sound from the DVD.

How can I add a second stream to that file?
If that isn't supported, I thought about just ripping the second audio file 
and put it on the CD seperatly, to be used with -audiofile parameter.
But I couldn't find out how to do that either; -dumpaudio produces some 
file that can't be used with -audiofile (mplayer doesn't find any audio 
streams).

Any help is appreciated!
Thanks
D.