Memory Card Problems with Copied Tony Hawk 2

[MeeSwift]

After Playing a copied version of Tony Hawk 2 for extensive hours and saving Season mode data and create a park data, I have came across a problem where when I put in my Memory Card the Playstation doesn't recognize that I have any controllers. And therefore I can't access my memory card. Could this be some advanced protection? Everything else is fine. The game is completly playable in all aspects. (US-NTSC version by the way) Does anyone else have this problem or do you think it is just my Card is ####ed, cause its just a 10 dollar 15 block card.????