Rita, You need to be a little more specific when you ask your questions. If you mean the letters at the end of the title in the filename after unzipping the book, then I believe that's just a convention that Bookshare uses to make sure the filename is unique since more than one book can have the same title. HTH Gerald _____ From: rita weyler [mailto:ritaweyler@xxxxxxxxxxx] Sent: Monday, July 31, 2006 6:15 PM To: bookshare-discuss@xxxxxxxxxxxxx Subject: [bookshare-discuss] end of titles What do those letters at the end of the titles after they have been opened mean? Rita and Camille