I got mine for like $20 on ebay lol (16GB Class 2) and I run A2SD with it, it's very snappy. The maker is Dane ElecI too have been using a 16 gb class 2 card for about 6 months now. I have not noticed any problems in speed, sometimes I do get a quick lag when first loading my music player but no skips in audio or anything. I have been desperately trying to decided whether or not to take the risk to see if I am one of the "lucky ones" and use A2SD with it... I got mine for 49$ @ Microcenter.