The save files, hm? That seems odd. It happens for games that don't even use save files, like Megaman 2 for NES. I wonder why it'd spread to other folders anyway... bleh. I do have backups of the ROMs but it's so annoying. I can't play an nes game or snes one and then go to a nds one, just an annoyance I guess. I tried putting in a "dumby" rom, one that I didn't care about and was small to see if it'd get corrupeted only instead. Of course, it and the one before it got corrupted... so I have no idea.