Ok so i wanted to play Contra 4. I never loaded the rom before on my M3 Real. It says a save file does not exist so its creating one. Nothing else happens because it freezes so now i have to turn off the ds. Not every time i try to load up the game or any other new game it gives me a message saying "Save data file Fromat error!" What should i do? Is there a certain file i gotta delete or do i got to reformat my whole sd card? please help.