Xvid audio conversion/sync problems

[headless chicken]

I have two different Xvid files that I'm trying to convert to SVCD in TMPGEnc. When I extract the audio to a wav file in VDub (I'm using MP3 freeze because the regular version won't allow me to do a direct stream copy), the file turns out to be around 112MB instead of the usual 700MB+.

Anyway, I continued the conversion with the significantly smaller wav file in TMPGEnc and set the VFAPI priority settings for DirectShow to 1 as is recommended for Xvid files. I encoded a brief section of the movie to test and the audio and video are completely out of sync. What am I doing wrong?

[narked]

Sounds like you've extracted the sound as being compressed not as uncompressed wave (especially if you've used direct stream copy). However it has the wrong extension, virtualdub does this automatically. Open movie in virtualdub, go to file - file info. If sound has 5 channels Unknown tag 2000 then it is ac3. rename your saved sound to ac3 and use a prog like besweet to convert it to wave.

[headless chicken]

Both files are MPEG Layer-3 Compression. I specified No Compression (PCM) but strangely my extracted files turn out to be just a little over 100MB. I've only been able to extract the audio for these files in Virtual Dub MP3 freeze, however. The regular version refuses to do a direct stream copy.

[headless chicken]

Okay, I've tried a couple of other things since my last posting.

Extracting the audio in TMPGEnc (save output to wav) gives me an invalid wave file, but it's uncompressed and over 1GB.

Extracting the audio in VDUb in full processing mode gives me a wav file over 1GB that plays fine but it still results in out of sync audio when converted with the video to MPEG-2.

Any suggestions?

[headless chicken]