We currently only support the use of 2 gig cards with the Book Port. Book Port uses FAT 16. 4 gig cards are FAT 32, so we don't support that. Pamela Rader, TECHNICAL SUPPORT American Printing House For The Blind 1839 Frankfort Ave. Louisville, KY 40206 PHONE: 1-800-223-1839, Ext. 307 >>> achloe@xxxxxxxxxxx 07/06/05 09:10AM >>> Is there a limit to the size of the card used? The largest I have seen is 4 g. Thanks. Anne C. Boggs, "The Renowned Crescent Street Princess!!" "A day without laughter is a day lost."