Solution
At the Error screen, hold down the Alt key while you type t then o (for tech override), and then click OK.
Credit
Mike D., Seagate Tech Support
Symptom
When booting the DiscWizard / MaxBlast boot cd to image a non-Seagate/Maxtor hard drive to the FreeAgent Go, the following screen is displayed:
Error
To use the products at least one Seagate or Maxtor device should be installed in your system.
...
and there is only an OK button; clicking that powers off the machine