Well, on our part, the secure card was a mistake. When we first got the otis, we wanted additional memory but were told mistakenly we needed a secure card. When we tried to transfer books, the computer would lock up. We got to a higher level tech at audible and were informed we had to have non-secured cards. So that is why I am asking if it makes a difference with bp. I think Walt provided the info I need. dory doryfish@xxxxxxxxxxx