Poor MP4 Encoding

[hismajesty]

I downloaded a DVD rip of the first season of Monk and on some of the episodes the encoding is horrible. The sound doesn't match the video, for example I hear gunshots and then about 7 seconds later I see a guy pull out a gun. All the videos are encoded in Mp4, which makes it more difficult to find a program to help. iago suggested virtualdub, but that doesn't support mp4. Any suggestions?  

[Stealth]

Tried VideoLAN yet?

[hismajesty]

Tried VideoLAN yet?

Nice. That worked. Thanks! It also appears as if the video quality was better at fullscreen. Thanks.