I have been trying to edit a video from my camera. I have edited videos from this camera in the past with no problem however this si giving me trouble (gopro  3 white).

The video is a drive in two parts. As I try to edit the first part, I work on it for a few minutes and then it gives me this message

http://i1160.photobucket.com/albums/q497/Evripidou_Maria/program.jpg

I have tried working on the second part (same camera, same memory card etc) and it worked fine. Any ideas what's causing this problem?

(Moved from Programs)