QUOTE(asdfggg @ Nov 13 2007, 08:17 PM)

Do I just make the ISO folder, where I put GAMES PICTURES VIDEO etc.?OKay, well, I can only play it if they are in PSP/GAME/ISO because that way I'll see it under my memory card in the XMB. Btw I have a slim. putting the ISO where PSP/VIDEO/MUSIC doesn't work.
You've got it wrong; PSP games don't go in "ms:\PSP\GAME\ISO\", they go in "ms:\ISO\".
You need to create the "ISO" folder in the root of the memory stick (not in any other folder).
Then you can put all your ISO or CSO files in that one folder ("ms:\ISO\").
PS1 games go in their own folders in the form "ms:\PSP\GAME\PS1GAMENAME\" (where "PS1GAMENAME" is whatever you want it to be, which is why "ISO" worked).