So, I uploaded the videos in which I recorded through my camera into Windows Movie Maker; and the problem the videos doesn't seem to play, be it audio or even the visual component of it. I tried removing that section of the video, inserting it again and it seems to work until I save and close the video. Cuz when I reopen it the same parts does not work and I can't seem to find out what the problem is. 

Help anyone?