I recently got a DS and a CycloDS card. I have it with a 2GB MicroSD card and it works perfectly fine. I haven't had issues with anything at all and I recommend it. It has many nice features like Real Time Saves (Save States) and Cheats, Slowdown and a couple other things. All games are compatible. It's amazing. I won't say the others are bad as I have not tried them, but I will say firmly that the CycloDS is an amazing card.