Audio Sync Problems

[vwcaper]

After using TMPenc to encoded an AVI file the resulting DVD has audio sync problems sometime after the start. Usually it goes for 20 minutes are so and then the problem developes. The gap rarely increases but stays constant once it has started. The original AVI does not have this problem.

When spliting the audio using VirtualDub I get the warning that the audio is VBR etc. Is this the problem?

Any ides?

[mats.hogberg]

One of them, yes.
First of all, you should scan for and remove bad/undecodable frames using VirtualDub (see giudes for removing bad frames). That it plays fine as AVI using a player tells you nothing about if the AVI is error free.

To deal with VBR audio, use VirtualDub and extract the audio track using direct stream copy -> save wav.
If the audio is mp3, rename the extracted xyz.wav to xyz.mp3, then convert to wav (CDEx). Use this wav as audio surce for the rest of your process.

/Mats