I guess I'm not crazy! It's an SD/MMC (?) card, I don't remember the brand, it's whatever DH uses at work on their extremely expensive digital they use there. He's used the same brand for about 8 years, and never had a problem.
Can you tell I don't know much about these things? I got my 1st digital (Kodak DX6490) for my birthday in July....
Steph