Amy: Book Port does not support files which were not sent through Book Port = Transfer. In other words, if you pick up a random flash card and put it in = the Book Port, there will be nothing to read, unless the card happens to = have MP3 files on it. But, even these MP3 files will not offer any = navigation. Rob Meredith >>> aruell@xxxxxxxxxxx 08/17/04 08:49AM >>> Hello Aph and Listers, I sometimes get a "cannot read unfiltered files" when putting a compact=20 flash into the book port. What does this mean? Thanks. Amy