I am trying to troubleshoot a friend's old 20GB iPod because it won't mount. When I force disc mode (or plug it in via FireWire) the drive just continually revvs, ticks and repeats every three seconds, like it's trying to mount, but never does. The screen alternates between displaying a (1) folder icon with an exclamation point (2) a 'DO NOT DISCONNECT, charging' message and (3) the Apple logo / icon. Her concern is getting the songs off, not the cost of buying a new iPod. Is there any hope?