Donna: First of all, it is always recommended that you format the card with the Book Port, if that's where you're going to be using it. The command for formatting is to press the 4 corner keys (1, 3, d and f). If you need to reformat with the computer, pull up the drive letter in My computer, press the Applications menu or click on the Context menu and choose "Format." Pamela Rader, TECHNICAL SUPPORT American Printing House For The Blind 1839 Frankfort Ave. Louisville, KY 40206 PHONE: 1-800-223-1839, Ext. 307 >>> dandmbrown@xxxxxxxxxxxxxx 05/07/07 04:00PM >>> Hello everyone, This is a bit off topic, and I'm sorry. How does one format a compact flash card by using a computer with a card reader? Thanks. Donna I can do all things through Christ who strengthens me. Philippians 4:13