I am currently recording call of duty 4 off of my xbox 360 using the dvc-100. While making my montage playback seemed normal transitions went very smooth. But for some reason after I save it and  make it a single file for upload some of my transitions seem to go haywire (making static,lines).After the transition the video is completely fine once again.

Note: This only happens on a couple of transitions in my video. 

Also What format is the best for me to save the file as? I'll be looking to upload onto youtube...