ok i have an R4 ds and i have like 13 games downloaded on it. Its on a 2 gig kingston micro sd. I just decided that i might as well trim my roms to save some space, even though i have alot of room left. I trimmed brain age, but now when i go to play it it says no save file detected would you like to create one? Is there a way to associate the .sav brain age file that i already have on the card with it? or do i have to create a new save file for all the games if i want to trim them.