For SNES first off download the Snes emulator from wherever.(SNemulDs is the best one out) After you have downloaded it extract the files it should have two files the actual NDS file and the cfg file put both those files on THE ROOT OF YOUR CARD. Next make a folder called SNES on THE ROOT OF YOUR CARD that is where the games go. Keep in mind that the compatability for the games are weak so look up a compatability list for the games and there it should work.