from amazon.com on the transcend 8 gig class 6 sdhc card. 16 bucks down from 34. not bad
Enjoy Faster Transfer Speeds
Basic SD cards transfer data up to six times (6x) the data rate of the standard CD-ROM speed (900 kB/s). Transcend SDHC class 6 cards offer a minimum of 6 MB/s write speeds under the most demanding storage conditions.