Since upgrading to OS X 11 I have a elicited a very strange problem. I print directly to CDs/DVDs on my Epson 7200, which I have been doing quite successfully for quite some time. I use a piece of software from Magic mouse.com called Discus, now I can create the design and when I get to the print section absolutely nothing happens. I have done some investigating even going to drive where I have a virgin copy OS 10.11 where it prints quite happily. On returning to my usual drive, I have the same problem. I can communicate with the printer via USB I can also print from a word document. The printer does not appear on the system report from the Apple menu but it does appear in the preferences. I have changed USB connections and a rapidly running out of ideas. Could somebody think of something blindingly obvious that I have missed.