I've searched everywhere for a solution but haven't had any luck. I hope someone here has an idea.

I shot an event several months ago and when my camcorder battery died, I began shooting video on my Canon T1i camera. I probably shot twenty or thirty clips and most came out fine. Four, however, will not open. They are all .MOV files and there is nothing special about the four that won't open other than the fact that they won't open. They range in size from 64MB to 666MB. All are in high definition (1080.) I can't get any converter to open the files, much less convert them. They are important scenes from the event and I really don't want to lose them.

Anyone have any suggestions?