So although I'm not using FCPX, I'm trying to figure out what the best way is to playback and store files that my Canon HF20 camcorder takes (AVCHD). When I record onto SD cards, I plug it into my MBP and it reads them as .mts files, which I found a video player in the app store to playback. But if I want to edit them in iMovie for example, I have to convert them into an acceptable format, AIC it appears to me. Here are some questions. If I just want normal playback and viewing of my raw footage, what is the best way to store my video files on my mac? Windows had a my videos folder, what am I looking for in Mac OS X? It appears that my CPU is doing all the heavy lifting for the transcoding process (well right now it is image stabilizing), why isn't my GPU doing the work, isn't that what it is for? Once I import all my video files into iMovie for Apple's liking, what if there are some clips that I want to delete and get rid of to save disk space? Can I delete the files right inside iMovie and that will take them off the disc? Where does iMovie put all the video files that it transcodes? On my Canon Camcorder, I want to record quality footage, but HD takes up gobs of room, will I notice the difference between 17 and 24 MBPS? Will recording in 60i, PF30 or PF24 make any difference? Thanks for the help, I promise I'm a better editor than I sound, I was using Windows with Avid Media Composer, but I don't really think it's necessary to explain myself.