Yes i too own the MadCatz memory card that holds 144 blocks of memory. It hasnt givin me trouble but i only saved stuff on it that i can recover in about an hour of gameplay. 3rd party accessories are NOT favored by anyone on this board I can tell. It may be more to pay for safety by buying a SONY made or tested product. A little more can save you alot of trouble in the long run. Also i suggest backing up your old memory cards. Never know even if it is Sony made.