If the audio track is not in synch, it may have several reasons:
- Maybe, the movie is badly encoded, especially with rips of zone 1 DVDs.
- Maybe the bitrate is too high for the power of your PC, and you need to decrease quality in the decoder's property Dialog
- With Div5.03 decoder and above, you can check all options in the "Quality settings" tab in order to optimise playing on overlay.
- If your graphic card support mode1 overlay, test the playing frame rate using [Alt+3] and see if it's according to movie's proprieties.
- It seem's you don't use the DivX5 codecs, if you want to stick to ffdShow, then check if you have the latest Alpha version
here and if it is then maybe install latest beta that should be more stable.
...or install DivX5 decoder.