I am just reporting that due to some really flukey USB port handling (my music files are all on a Maxtor 200GB external USB drive) while disconnecting a camera (also a USB connection) from our PC, the Maxtor drive is kaput. Although the data seems to be undamaged, the drive is unreadable.
However, at the moment, I am using r-studio.com software to restore files. I may just decide to get a third, bigger, drive for backing up both photos and music.
FWIW, I used a DVD player in the interim to listen to some tunes and the sound was dreadfully flat having become totally brainwashed by my RWA modded Squeezebox.