I had been playing Super Robot Taisen OG EF when it happened the first time. I got decently far, them left it alone for a few months. When i can back to it, there was no load game option. Funny, I didnt move anything or delete it did i? Checked the kart, and all the save files are right there, the game just doesnt see them i guess. Also it happened to my castlevania DoS file. Again all the saves are on the kart, just not being recognised. Now i can start a new game and come back to it again and it finds it. But it doenst see the old ones.