Downloaded video out of audio sync, any fix?

I dowloaded a video fom youtube using tubemate, the first 20 minutes of the video is good then inexplicalby out of sync. I was hoping someone knew a fix for it. With so many apps in existence I thought maybe there could be one but I haven't found one. I have an HTC G2 if that helps any.

Really want to watch this movie right. Dead or Alive, Jaime Pressley fit and fighting in a bikini...mercy.