I had just managed to get all the way to "The Final Hour" chapter, where you're given the opportunity to freely explore the world and do all the last minute side quests. I saved, shut off the DS, and then went to bed. When I opened it up this morning, although my Chrono Tigger rom loaded quickly I still had the .sav file, none of my actual game saves were available. Did I just screw myself over by not backing up? Is there anything I can do to salvage the last 20-odd hours of gameplay?