Can anyone tell me the best editing software for editing iPhone 4 videos on a PC? When I transfer my iphone 4 videos to my PC, this is what happens: (a) When viewing them in Quicktime, the videos are very choppy (b) I try to edit them in Magix Movie Maker and they do NOT have sound I am running Windows XP. Does anyone know the best software to edit these videos is for a PC? And why my videos are very choppy when transferred? Thanks!