Hey all, something that is really bugging me at the moment. So I make a recording on my digital camera, AVCHD in full HD and 50i The original file is under 1GB but when I put it into iMovie, it converts it to a file which is way over 2GB, and I am running out of space. I dont see why it has to do this to be honest. Luckily I can set the camera to record in MP4 mode, full HD 25p, the size of the movie is half the AVCHD, and it imports them directly to iMovie so no more big files, but I am a little worried I am losing some quality by doing it this way. I have a good eye for quality and can not really notice much of a difference, but the videos are important to me and I dont want to lose any quality! Any help?