well, this thing is the best yet. what you used to have to do is insert something called a 'PassMe', and this tricks the DS into thinking its a game. then you insert a 'G6' cartridge into the GBA slot and it has a USB Out on it so you can transfer the files from your PC to your DS. now the the DS-Xtreme is out, theres no need to use the GBA slot and the actual DS cart is used as a PassMe AND the storage with the USB Out on it. and you do the 'drag-n-drop' thing on ur PC to store the stuff. i cant wait til you can play DS games on your Wii...then you'd prolly be able to watch movies and stuff on your tv, via the DS-Xtreme on the DS!