Hi Terry The program you want is xilisoft audio converter. It worked for me without the buzzing. A Google will find a download site. Roger Some mistakes are too much fun to only make once. ----- Original Message ----- From: terrcooper To: access-uk@xxxxxxxxxxxxx Sent: Monday, June 04, 2007 5:44 PM Subject: [access-uk] converting AAC files Hi All Can anyone throw any light on my problem. I have several books downloaded from Audible.co.uk, in AAC format. I have used both Goldwave and Switch to convert the AAC files into both mp3, and wav. If I try to play them back, I just get an awful buzzing noise, using winamp and media player. Are these AAC files not meant to be converted? Any help appreciated. Terry