I also plan to stick with atrac. The other formats just cannot complete with the quality of it. Gapless playback also a big bonus of atrac. Some albums intentionally have no gaps between tracks (eg dance mixes and live albums) and it is nice to hear the album as it was intended to be heard - with no gaps! There is nothing worse than 1 or 2 second gaps right in the middle of a smoothly mixed house or techno complication! For me, 132kbps atrac3 is far, far superior even to 192kbps MP3. So I can get a lot more albums on my walkman at a quality acceptable to me, than i could with MP3 or WMA. I am going to have to take very good care of my NW-E015 walkman, because I think it will soon be impossible to get a new atrac3 player here in the UK!!