LuAnn: My guess is that you have too many files in the root folder of the card. Try creating a folder on the card and sending the Audible files in question to that folder. Rob Meredith >>> chowe641@xxxxxxxxxxxx 10/02/05 09:40PM >>> Hi, I have some format 4 Audible files that I want to send to the Book Port. However, when I try to send them, it says, "Marking phrases," then I get an error that says, "FFAPHAud: FFMP3: error enitializing data file." Can anyone tell me why this is and how to fix it? Thanks, LuAnn