I would like my music player (hardware or software) to allow me to tag tracks for comments and ratings. I want to be able to create my compilation of favourite tracks and to remove the songs I don’t like.

Winamp has someting like that but I am still not able to remove the file of the current song physically from the hard drive once I decided I don’t like it.

I saw the iPod has a rating system as well as iTunes: this kind of metadata information is something I want to collect, share and take with me.