I have N1.
Because by using NetMD, you can choose music
quality. From hi-fi quality(optical connection,
digital recording from CD) to lowest quality
(1 disc for over 60 songs), there are many
choises.
And MP3 player has memory limit, the capacity
depends on the memory,but NetMD has not such
problem. You can carry many MD disc with you,
and they are not big. It's like a mini cd player.