While playing Persona 3 FES, I was about to save. During the saving process I have received a message that PS2 Memory card 1 not found and Saved failed. So I saved on file 2, luckily working. On my next save (on the second file) I have received the same message, so I again saved on file 3. I still have lots of room in the memory card and the ps3 is still pretty new. What should I do?