I recently defragged my computer using Iolo's System Mechanic 5 Mobile toolbox and now all my videos are upside down! Please help! What can I do about this? Thank You! Thaaone
Somehow your codecs got screwed up. Its unlikely defragging caused that though...
Anyway download a program like gspot and open the vid with that, find out what video codec it is using, and then google for that codec. Or just get VLC and use that.