Hey ftp1020 ... thanks for clearing that up for me ... I guess I got the wrong idea from digitalFAQ's 'How to detect bad discs with software' article (2/3 of the way down the page) ... they are using older version Nero CD-DVD Speed screen shots as examples, and, after re-reading the article, I can see now where they did describe the use of the ScanDisc test as a 'READ TEST' ... my bad.
I've now looked over my PlexTools Pro pdf documentation (' ... Reference Guide' seems to be the most in-depth) and have familiarized myself with the Q-Check FE/TE Test procedures ... the only thing that I still don't quite get is how to locate GUI controls to enable (/disable) PowerRec utilization of FE/TE information [when 'Q-Check FE/TE Test' is selected in PlexTools Professional 2.32a and the '?' mark button is clicked, an explanatory dialog opens where Plextor finishes up by talking about "PowerRec uses the FE/TE information and will adjust the recording speed automatically (if enabled)."] A search of all the pdf documentation I have from Plextor fails to find the term 'PowerRec', although I've heard it described in Plextor literature elsewhere many times.
I can't seem to find it in my PlexTools Pro 2.32a Options > Preferences GUI either. How'd I miss it ... so far ... I wonder?