I have got a 700MB AVI film thats been downloaded, its encoded with XviD and I notice that the first 1Hr has an audio sync problem, then mysteriously it gets better for the last 30 mins. I have run the bad frame scan in MP3 Vdub and it finds 34, which I then remove sucessfully. I play the new AVI back and its got even worse...............I understand the phrase "Junk in, Junk out" so I am wanting to know if it is possible to correct this in the origianl AVI file somehow??

Can anyone help please

Thanks in Advance