ok i downloaded a shitty rom to try it out right? well ok that backfired originally and i lost my whole Systems folder, then i found a new one and put that in its place so all was good, but i got bored of this game and put my card back into its reader in my usb and my stupid ass vista tried to fix the files that were "broken" now all i had was the DS and System files but i couldn't open them *they weren't folders, more like a white page icon =/* so now i cant replace them cause it doesn't have enough room or nothing. thats why i think id need a reformat or something if its possible o.o