I am very new to the Mac. Just got an iMac 27 and I love it but I am confused about video. It seems to me that QuickTime only supports a very limited number of formats for video. Is this the case or am I missing something? I have found very little that the PC would not play. But the native output of my camcorder will not play on the Mac without conversion. I had to convert my videos for the ipad but kept the originals on the PC but now I cannot play the originals anywhere but the PC and I would like to phase the PC out eventually.... If I remember correctly QuickTIme wants MPG 4 format? Is that the only format? Is this a loss of video quality from other MPG formats? What about avi? Considering Final Cut Express, would this help in format conversion without loss of quality? I would greatly appreciate any explaination I can get for the video issues with the Mac and QuickTime when coming from the PC.... Thanks!