Ha, guess what I found in the mail today! After I sent a mail to startrek.de
over two weeks ago, they actually just sent me the corrected discs! Whew! If that's their response to my mail, I'm very glad about it. Now my secret plan of keeping the faulty discs as some kind of rare obscurity has come to full fruition.
Oh, and they also included a German version of that "Sorry, we screwed up" card. Nice touch.