encoding a DiVx file to XSVCD without decompressing audio

[uxbridge]

Hi
I have a DiVx file that I would like to convert to XSVCD.
The audio is MP3. Vdub can extract it to a wav file and then I could run TMPGenc on the audio and the video file to create the XSVCD.

However, since an XSVCD can support mp3 audio, is there any way to extract the audio file from the DiVx file without decompressing it to wav?
I would like to extract the MP3 soundtrack as an mp3 file and merge it with the video mpeg file that can be created from the video DiVX to finally have an XSVCD whose mp3 audio has not been decompressed and re-compressed.

Does anybody know of a way of doing this?
Thanks

[bugster]

Virtualdub, direct stream copy, save as wav, change the file extension.