My GTA VCS UMD (woah, 3 3 letter acronyms in a row) shuts down the PSP before it can start loading. It gets to the screen with text (after the intro) then the speakers make a pop noise and the whole thing shuts off. My only other UMD, Star Wars Battlefront Renegade Squadron works perfectly fine. I don't think it's scratched as in the time between the last time I played it and now it was never out of the PSP. Any help?