Please help if you can, I have a PSP 2001 I bought about a years ago with CFW PSP 2001 CFW 5.00 M33-6 with stock psp battery, I have 2 16Gig memory sticks one I have now found is a fake magic gate and one a real one both worked equally as well before. I have over the past year had no problems what so ever with it reading and playing games off the memory stick however, not all ISO's or COS's could be seen or played but, the ones that would play played with no problem.