I just spent hours working on this project, only to export it and have it look terrible. This is supposed to be a shot of happy people cheering, btw. Edited in Final Cut Pro 7. 720p HD is the footage. There are two formats I'm using for my footage. Most of the the clips are .mov, and there are just one or two that are .mp4. The video looks fine when played back in Final Cut. I exported to a standard QuickTime movie, no changes, etc. When I play the video back in QuickTime Player, it will cause QuickTime Player to freeze and force quit. Any ideas? Thanks.