On the other hand, another reader claimed he could not get Drive Setup 1.4 to work on his Apple drive (found in a Performa 6116 CD). Drive Setup 1.3.1 did work.
Then there's Mike Lambert. He got a blinking question mark startup problem on his UMAX clone after updating with Drive Setup 1.4. Reverting back to 1.3.1 fixed it. I hope this does not signal the return of this frustrating problem.
In general, as noted by Larry Perkins and others, Drive Setup 1.4 appears to work with more third-party drives than did previous versions.