You can remove the card without removing the batteries. Just remember to wait for the double beep before removing a card from the unit. This insures the card is closed and that there are no outstanding writes in progress. -Brian On Jan 19, 6:02pm, "David Lepofsky" wrote: } Subject: [bookport] proceure when swapping cf card } when i am taking out a compact flash card and inserting another one in its } place, is it necessary to first remove a battery or can you swap cards on } the fly with the bookport still having both batteries installed? } } >-- End of excerpt from "David Lepofsky"