Mine is under non-OS HDD:\Media\Music\ then I've got separate folder for Music Videos, Playlists (yes, I still use Winamp), and Music again. Then it gets a "Best", "good", and "okay" treatment. Then I try to sort them into the kind of type of music it is (at my preference). Like Beat-Bass-Melody (Then each as its own). Sing-along. The "unsorted" gets sorted under Albums if they have any.