Convert dual audio from avis?

[CactusMan]

Hello people,

There is any tool to convert two tracks (dual audio) from avis?
Like those tools to convert MKV DTS to MKV AC3... making the process easier...
Have a lot of these dual avis, all with mp3s VBR. My dvd player (who reads divx) play these but at some point the audio goes out of sync.
I have to extract 2 audios... convert audio to CBR... remux with avi-mux gui.
Any help?

[jagabo]

VirtualDubmod.

[CactusMan]

virtualdubmod uses avisynth scripts?
if I use these scripts I can just switch the name of the avi making even easier?

[jagabo]

Why would you want to use an AviSynth script? VirtualDubMod can open AVI files directly, you can discard one audio track if you want, and convert the remaining track(s) to CBR MP3, all without reencoding the video. If you use an AviSynth script you will have to reencode the video. That will take longer and reduce the video quality.

[CactusMan]

Uhnn, yes...
I know vdubmod, but never realy used avisynth scripts. I was thinking about convert only audio tracks, but my mistake. It's used only for video.
Just converted one avi with vdubmod and going to test it. Thanks.