> Use a tag editor like, for example, Easy Tag, included in most distributions, to edit the mp3 files

> so that they will appear as you want them on the player. 

I have just bought a E280 and found that unless I use Id3v2 tags they are not recognised and all my tracks are dumped in unknown. I have not found easytag useful for this. What I have been doing is checking that I at least have artist, album and name set in amarok then from the command line navigating to the directory and id3tag -2 *.mp3