The Book Port uses standard Type I flash cards. You will need to activate the Book Port on the PC, through BP Transfer. You cannot switch cards among units. Pamela Rader, TECHNICAL SUPPORT American Printing House For The Blind 1839 Frankfort Ave. Louisville, KY 40206 PHONE: 1-800-223-1839, Ext. 307 >>> doryfish@xxxxxxxxxxx 07/22/05 11:51AM >>> I understand that the bp uses type 1 flash memory cards. Does anybody know if it matters whether the card is classified as secure? We'll be downloading audible.com books to the bookport and I know with the otis, you cannot use a secure card. But I do not know if this would apply to the bp. dory doryfish@xxxxxxxxxxx