Ant Will yeah there must be something in the video file that's corrupted or your camera could be faulty. Anyways that made the video pretty much unwatchable. Hope you find a way to fix it.
+PsYch-Roxx The sound is probably the camera's fault. I've noticed that happens with some kinds of cameras. The sound being out of sync with the video, on the other hand, is either because of a corrupted video file, a corrupted audio file, or just because of RU-vid.
