fake mem stick prob

so i have this mem stick which i believe to be fake cuz of abysmal write speeds and i bought it off ebay for $20 2 years ago. when i format it, windows explorer says no corruption but when i load the games thing in the xmb there are hundereds of corrupt files. mind u that i can play my HB cuz its at the bottom but i was wondering if there's a fix for that

 

Assuming you are running custom firmware.

Power down the PSP (fully not sleep)
Power up holding the right shoulder button to access the recovery menu.
Select Configuration.
Enable "Hide corrupt icons"
Go Back and Exit.

 

u assumed right but that didn't work. in the end i formated it then error checked it w/windows however my problem will prob continue if i put more than about 1.5gb on it

 

this happened with mine a week later the card broke could not use it after that.

 

that happened to me quite a few months ago where any and everything got corrupted but then i found out that it works now so i think that if u want to use that card again just give it some cooldown time