The PSP 4GB Datel MS-CF Limit Solution (well almost)
I used 2 apps to get the PSP you see more them 4GB.
killdisk (wrigths 1's to the card)
h2format (will format the card in fat32)
You are free to find them where you find them :)
tpye: h2format @:
@=your drive letter
Maybe it was just my cards but I was unable to save games(wright to the driver).
I'm using a 5GB Seagate ST1 Drives one came from CREATIVE ZEN MICRO and ther other from a Rio Carbon 5GB (it has 1 error at about 2200MB so I dont use it over the 2GB mark)