Yes, up to 4 GB. Speed is unimportant, except that you might want to buy the faster card if it happens to be cheaper than the slower one. SanDisk and Kingston are good and have a good warranty. Prices vary widely and are usually cheaper on line with no sales tax. Look for free shipping. I believe that you should format on the Bookport. Richard ----- Original Message ----- From: Kent Keever To: bookport Sent: Thursday, September 21, 2006 4:53 PM Subject: [bookport] compact flash cards Hi, I recently got my bookport and subscribed to the list. I wish to get a new flash card. Do all type 1 compact flashcards work with the bookport? Thanks. Kent Keever