oh, the magic key uses a SD card? Didn't know that. I thought that the slot in the magic key was used to put an NDS cartridge in there, cuz i remember reading some faq that u need a working nds cartridge plugged into one end for your rom to work, it was used to trick the nds into thinking there actually was a legit cartridge in there. Anyways, remember I don't have an NDS yet, I'm just using my imagination here, I don't know how the NDS is setup. Thanks for all the answers. u guys have been really helpful.