GORDO I've used every version of Norton Utilities for Macintosh starting with 3.0 or 4.0 up to 8.0. and never had trouble. Disk Doctor worked. Then I got 8.0. It, too, worked for months without a flaw on 3 different drives. Then, on a drive it seemed fully compatible with, one day the drive unmounted while I was "fixing" it from the booted Norton 8.0 CD. There were some files not backed up, but under 5-10%, and no problem to replace. An Apple Authorized Dealer's repair person, who I believe,
took the machine it was on & thoroughly tested it, then reported (in effect), "I can see the drive but it's
flawed & not worth repairing". So, in my case, was it sick drive, sick Disk Doctor, or.....? But I'm sticking with DiskWarrior in the future, even though it repaired the drive's directory just before I ran Norton Utilities, and pronounced the repair successful.
(Version 8.0.2)