I agree with anandjones. I've had a Kingston 2 gig micro made in Japan for a while works great. Some reviews show these have the fastest load time. I gave it to my girlfriend for her DS through, I upgraded to a 4 Giger "A-data" brand. I havn't heard of anyone else that has one but its not slow and it gets the job done plus I got it for $30 on new egg a while back. ;D I'm sure most work well this is just my opinion since I own these.