Did your game crash? When my games crash, Action somehow can't close the video properly and the videos end up useless. I can't even show game developers a proof of game crashing. Same problem.

I don't think it's only avi issue. Because I always record in mp4 720 and when game crashes, the video is unopenable. I record a nice gameplay moments and the game crashed and i can't use the video file. And all files in mp4. This happened many times. I never record avi, because I can't open it with...