i've got just the same problem - "sd card too slow"
i've bought my kingston micro sd 2gb at amazon, and have just verified it at kingston site - "The flash memory product you inquired about has been verified to be an authentic Kingston product."
maybe it's because of faulty supercard? do you...
know what? fuck you guys, i've decided to curse you guys with some knowledge: i'm too sexy by right said fred, 7 years by lukas graham, what i've done by linkin park, and du hast by rammstein are all 120 bpm