So. Yesterday I got my R4 DScard with a 2 gig memorycard. I did not get a CD with the files _DS_MENU.dat or whatever. So when I open the game, with the memorycard in it, it says "Couldn't find _DS_MENU.DAT_". When I open the card in the USBstick, there is no systemmap, nor a file like that. Also, how do I put games in there? Whole zipfile or only .nds?
you need to download system files... theres a step-by-step here http://forums.afterdawn.com/thread_view.cfm/627024