BruceSmith said:
No, no, no, no, no, no, no.
Hoax, I recently wrote (with the help of the community) an SD buyer's guide on the Pandora community blog. Some of the stuff is Pandora specific, but we ended up with a lot of good, general information in there too. The Speed Class and Safety Guide sections will both be of use to you. The comments section contains a lot of good information too.
http://pandorapress....de-to-sd-cards/