Hi there I am also having a big problem converting mp3's to Atrac in Sonicstage and would love some help please. My sonicstage library has been imported from My Music as Mp3's. Some of these files have been ripped from CD, others have been downloaded. Sonicstage is able to convert any Mp3 I have ripped from CD myself, however it won't convert the downloaded Mp3's (although it always could in the past). It will allow me to transfer the downloaded Mp3's to my NW HD3 but only in MP3 format. This means I can't transfer all of my library since a lot of the MP3's are large files (320 kbps etc) and this also has a knock on effect with battery life etc. Dave Venman, you mentioned something to do with tagging in your previous post. Could you go into a bit more detail please? Is it possible that Win Med Player 11 is tagging these files itself and that this is creating conflict with Son Stage? If I download a "fresh" MP3 and save it somewhere other than in My Music, like desktop for example, and then import it into sonicstage, I am able to convert it. I have SS 4.3 and win XP all updates. Any help or suggestions greatly appreciated. Will