Hello Jonas, i haven't used swfmill mp3 import yet, but i think it only supports stereo mp3s and no mono or joint stereo mp3s. Have you tried using a stereo mp3? Ralf > Hi! > > I'm trying to create a swf containing mp3s, but obviously something's > wrong. > I'm using a 128Kbit mono mp3 (later I want to use stereo).