First good news, both R14.x (paid) and R16.x (temp.) seem to work now and are ripping & reporting via Accuraterip, even though the CD Drive is still not "named" and shows as "D:[-]" - this was a red herring. Think it was due to the dbpoweramp App not being "allowed through a controlled folder" by Win Defender. This option just came up (didn't previously) and I've enabled several files including CDGrab.exe of both versions. The Accuraterip also then self-configured. Have ripped 2 CD's several times and all okay.
BTW I did try the Win Safe mode but that made no difference, other than after restarting in Normal mode Win Defender gave this "allow through" option.
Thus for reference it looks as if Win Defender was the issue, and I attach the debug output and a screen-shot of the option itself.
debug1.txtallow through.png