were can i find on my ps3 ydl 6.2 computer to show me what files it supports?
Program files that are supported on the ps3 ydl are with the extention .ppc, files that need to be compiles in order to make a .ppc program file are: .tgz, .tar.gz, other than that it can play and execute music files, pictures, openoffice documents, etc... Other than that the ps3 can read any file you want, for instance if you plug in a usb, or music player, or an external harddrive then the ps3 can read all the files on those items, also it can read all the files on a cd, dvd, or blue ray disc.
seems like i cannot download certain files?
Yes, because most other program files are .dmg (mac osx) .exe (windows) which are for x86 pc's and not the ps3 which is a ppc machine
i got a avi on movieplayer and mp3 on musicplayer
That's not really a question and it doesn't make since :/