[tlug] Where to get a "free" mp3 walkman in Japan

[Andreas Kieckens <akieckens@example.com>]

 Hi all

My girlfriend is currently looking for a portable mp3 player but she 
doesn't want to install any software like iTunes or such to put music on 
it. Since there are a lot of Linux enthusiasts that enjoy the same 
freedom, I figured this would be a good place to ask.

Does anybody know of a good mp3 player that is available in Japan and 
allows you to manage your music without the need for additional software?

Thanks
~Andreas