Hello: Any audio files you send to the Book Port will have to be 16 bit, as the software has prompted you. The recorded memoes are handled differently, so that is why they are lower. When transferring Daisy 2.02 books, you want to transfer the file with the "ncc.html" extension. Note that we do not support Daisy 2.0. Daisy 3.0 would transfer the OPF file. By transferring these specific files, then you'll get all of the correct audio. Also, if the files are variable bit rate files, they will not play. Pamela Rader, TECHNICAL SUPPORT American Printing House For The Blind 1839 Frankfort Ave. Louisville, KY 40206 PHONE: 1-800-223-1839, Ext. 307 >>> qau_zubair@xxxxxxxxx 04/25/07 08:24AM >>> Hello Everyone! The problem that I am facing since I got the Book Port device is that I could not hear the voice of any .wav or .mp3 files on the Book Port device. By pressing "5" shows that the file is being played. When transferring any 8-bit Mono audio file from PC to the Book Port device through the Book Port Software gives the error "Only 16-bit PCM uncompressed wave files are supported." Interestingly the recorded file that the Book Port device generates in Memo folder is also 8-bit Mono file but its voice is easily heard when played. The file recorded by the Book Port device has the following specifications. Bit Rate-88kbps Audio sample size-8-bit Channels-1-(mono) Audio sample rate-11-kHz Audio format-PCM Secondly the Book Port device does not play the Daisy 2 and 3 books with audio. The Daisy 3 books without audio are properly played. But the Daisy 2 books without audio are not properly played. I use the Book Port Software to transmit the files from PC to Book Port device. If anyone can guide me to play the audio files on the device and to help me to play Daisy 2 books on the device, it will be appreciated. Zubair Younas. --------------------------------- Ahhh...imagining that irresistible "new car" smell? Check outnew cars at Yahoo! Autos.