jason I can never tell which one of these compact flash cards I should buy... this seemed to be the fastest one, which is important if you're doing video yes?

marcscarpa YES... also, there is some adapter to take external microphones into those SLR camera's as there internal mics are not that great...

jason This is going to be for video and photos of London Athena, so I think I should be OK with the standard mic... if not I'll upgrade.

marcscarpa for that purpose its more than fine... click!

superfly I can't tell the speed difference any longer between any of these since the processors in the cameras and computers are so damn fast as it is, hardly seems to make a diff for me any more.

modena Have you seen the new file format coming for Flash memory? Currently it is FAT with a 32GB maximum capacity per card and a max file size of 4GB. The new version is exFAT - that will be a 256 TB maximum capacity per card.

ArionRickAllen The Cards have speed ratings that are hard to find in the specifications. You can usually tell by price if it's a class 2,4,or 6. 6 being the fastest.