Struggling with this. There are numerous sites on the net that can say take a youtube video, and download it as an MP4 file that says is PSP compatible. The sites ive tried are Savevid.com and Keepvid.com. So these download fine, and im putting them into the VIDEOS folder on my SD card. But they are all coming up as unsupported files. I cant see why I as i have a film on there which seems identical in format etc, which plays fine. Am i doing something wrong, missing a trick etc?