Ok, i used to save mkv files as self contained files so i could import them into itunes. With the new quicktime x it doesn't give me that option but it says save as movie so i am assuming this will do the same thing. What is intriguing me though is the save as hd 480p and 720p options. Does this mean it will upscale a normal file into hd or is this just for saving already hd files??? Im confused, please help and sorry if im being an idiot.