I've had my 80GB PS3 for about two years now but just recently got an HDMI cable. So naturally I'm all for finding and watching the highest definition files I can find for whatever I want to watch. I'm trying to watch a video file at the moment, [my computer is too old to play 720p files] so I used a USB flash drive to transfer it on my PS3. The console recognizes the flash drive but cannot view the video file. It was an mkv file that I later changed to an avi, but it still can't see it. Am I doing something wrong or am I so illiterate when it comes to console software that this can't actually be done? I still haven't tried to hook my USB Hard disk drive to the PS3 to check what files the software can read.