Quote Originally Posted by Jesse1
is this a ps2 card? it won't work on ps1 games. Or maybe the memory card is full. can you create new files on other games or just overwrite them?
Exactly. If you're using a ps2 card, go and buy a ps1 card. If you want to have more space, load your ps2 without a disc in it and go to the browser and there you can copy save states.