I have been having a big prolem with my M3 DS Real. I have the BP5ES version. I use a 4GB Sandisk Micro SD Card I just got my new M3 DS Real yesterday and I put the latest software and my games on it, also some music. I can play the games and listen to the music for about 2 minutes then it freezes. Sometimes it freezes on the menu screen. Now it freezes before the M3 even loads. I tried this card on another DS and it seems t work fine. But my DS is pretty new and regular NDS and GBA games still work. So what is the problem? Do I need to buy a new DS?