Target, a US store, sells a Dane-Electric 8GB micro sd. It's packaged as a "class 4" card. Dane-Electric is just a brander so the cards come from different makers. There are 3 different makers for this card. Look for the one that says "class 6" in super small type. That card has 19MB/s writes and 21MB/s reads. That's double the spec for class 10. I stocked up when it was on sale for $9, but even the $13 normal price is a good deal for such a fast card. Good for people trying to max out their video bitrates.