I have the same problem, my son has a ds and it wouldnt read the games so I sent it to Nintendo for repair. They sent it back and it did the same again after two weeks, taking another game with it! So I sent it back again and it still wont read the games. Its not the games as I had bought new ones, but nintendo say its not the machine! I dont think they replaced the card reader, but they say that it is fine on their diagnostic machine!! I was going to buy a new machine, but where do you stop....new cards new machine.......I am pulling my hair out! Why wont they say that the games are faulty or the machine has wrecked the games. They just say it is very strange and they cannot understand it!!!! Having read such items on the bloggs, I think many people have the same problem and nintendo wont admit their fault.
humpty, February 2009