Has anybody else had this? It's not even listed in Nintendos tech support. It only happened to me with one game but oddly it was the one I borrowed from Gamefly (the disc was in perfect condtion). My new, purchased games work perfectly.
It could be the game has a defect on it and the system won't read it as several people who rented games from Gamefly indicated that they noticed some grooves on the disc and that's what caused the error