Right, so im not sure how but i had 17mb of memory left on my stick, and while i was playing an SNES emulator game on my PSP, it froze. I restarted the PSP, and found that i now had a memory of 0kb left....now majority of my songs don't work, ive lost all my game saves, the SNES emulators+all other "games", i can't play any UMD game, since it freezes and crashes right after it attempts to read the memory stick, and i can't hook up the usb, since my comp always takes me to a formating option and i can never complete the format to clear my stick. So yeah i'm screwed, ill likely take it to return and hopefully get an exchange on sumthin tommorow. But id like to know if anyone knows, is this a memory stick problem, or a PSP problem. HELP! plz.