BIggg audio desync help!

[iamtrojan3]

I'm trying to change the audio on a video, in .avi format.
THe video starts out fine, and audio's intact, but for some random reason, at the 5 mins mark the video starts to play at the beginning again while the audio doesn't.
SO Basicly how do you make the audio of the .avi start playing 5 mins after the video had begun?
thanks for the help
i already installed vdub and can open it fine.

[manono]

It might be easier just to demux the audio, cut out the first 5 minutes of the video, followed by muxing the audio back in.

But to answer your question, 5 minutes is a 300000ms delay (5 min. x 60 sec. x 1000ms)