AVI desyncs on the fly, VOBs perfect: quick reencode?

[dez93_2000]

Hi all. I'm trying to convert VOBs to AVI using AutoGK (usually a brainless task), but although the VOBs are fine, the output file (xvid, AC3 192kb/s CBR) loses sync. The thing with it is (and i've had this on a few things before) if i jump to any point on the timeline & play from there, it plays fine (no desync) for a while then loses sync in little bursts.
I've heard running virtualdub mp3 freeze over avi's sometimes helps but i got the impression that was for constant-time-ammount desyncs, something to do with VBR header problems. Any ideas? Is there some kind of 'background sync point' that my avi's are descending towards that i can change? OR! Is there a way i can sync audio to video at every keyframe (for example) then flash reencode same settings?
Or should i try outputting under different settings (e.g. divX, mp3 CBR/VBR)?
Any thoughts appreciated. Cheers
Si

[Soopafresh]

You might have to do it the longer way -

Open each .VOB in VirtualDubMod and convert to Xvid seperately. You'll end up with 4-5 AVI files which you can put back together via VirtualDubMod when you're completed.

[dez93_2000]

Not the end of the world, by any means, since i can always go away & do other stuff. Thing is, if converting individually would sort it, then where is the problem coming from? Equally, if simply doing it through vdubmod will fix it, can i not do them all in that at the same time (or is there no option to queue up or join vobs)?
Cheers 'fresh

[Soopafresh]

Nope, no option to join the vobs, unless you use AviSynth and feed VdubMod your .AVS file. Actually, to convert them one at a time might be of use. You might find the culprit (if there IS a culprit)