Hi, Make sure to send them through the bookport transfer software. Amy Ruell ReadBooks! Program Manager National Braille Press 88 St. Stephen St. Boston, MA 02115 Phone: (888) 965-8965, ext. 34 Fax: (617) 333-3456 Email: Aruell@xxxxxxx -----Original Message----- From: bookport-bounce@xxxxxxxxxxxxx [mailto:bookport-bounce@xxxxxxxxxxxxx] On Behalf Of Phil Parr Sent: Monday, January 23, 2006 7:51 PM To: bookport@xxxxxxxxxxxxx Subject: [bookport] My conundrum. When I try to play the m p 3 files I have recorded on my p t r book port says this. unfiltered files not supported It is of course not my intention to have unfiltered files so, how do I filter them and get my little bookport to play them? Phil Parr.