I have two 4GB Duo Cards, with 3.40OE-A installed. Stuck the new cards in the PSP, formated (with 3.40OE-A). First I tried to copy my Savedata dir from my 32MB card to one of the 4GB cards. (Using the UMD) Went to load it, and it came up with a bunch of "Data Corrupted" windows (where the game logo should be). Second, tried to copy a few .ISO's to the ISO dir, and went to Game, Memory Stick, hit "X" and the same thing. Bunch of "Data Corrupted" windows/icons. So I went to check the Memory Card Info, using the Triangle/Information and for Magicgate it said "Unknown". Are they fake cards?, and won't work? Again, this is under 3.40OE-A (formated with that also) When I had them formated with 2.71 it didn't show the Magicgate info. Ant ideas/help? Thanks.