@peemee Been meaning to ask you; is the Apple SuperDrive a similar affair to the built-in variants? It's obeying the regional change I'm thinking mainly about.
Have a pain in the proverbial ass with my old MacBook drive as it now has two changes left before being locked to a region. Most problematic when ripping DVDs, oddly enough. Some just won't be read if the "wrong" region is set. ?