So, I bought Dark Souls Prepare to Die edition for PS3, which is exclusive to UK but according to my research it's supposed to be region free (i live in America). Anyway, it just arrived in the mail and isn't booting up. It shows the Dark Souls Prepare to Die artwork in the main menu of the PS3 (so it can obviously read it), but when I click the disc to start the game it gives me an error message saying I need to clean the disc (disc is spotless / brand new). Any ideas? This is for my brother's birthday in a couple days, so I'd like to get the kinks worked out before hand, assuming I can get it to work at all. Please advise.