Just a note if you are struggling to get the right tracks and art onto the Walkman it works fine with Windows Media Player 12 (not tried it myself with 11).  If you create a music library on there then WMP will do the album art etc for you.  If you remove music from WMP then the next time you sync with the player it will remove the music from the player for you.  I've found this less error prone than doing manual updating.   The beauty of this is that if you are running W7 and use Windows Backup to an external hard disk you'll have all your music, album art saved.  If you go down this road you'll need to format the walkman disk (using an option on the walkman not pc) and sync out everything from WMP. Rgds.