I've currently got uncharted in and set it to blu ray required but it doesn't necessarily have to be the game you backed up cause I got uncharted 1 in and im playing PROTOTYPE just fine

---------- Post added at 11:57 AM ---------- Previous post was at 11:55 AM ----------
You do have to have a br disc in though but apparently it doesn't matter which one as I said cause I've been running 3 backups off of uncharted 1 and when you load lv2 patcher and go back to multiman be sure to hit no then where the game disc is on the xmb it should be the game you loaded and not necessarily the one in the tray.