I'm using a late 2015 iMac running on High SIerra 10.13.5. When I plug in my USB SuperDrive, the computer doesn't recognize it (at all - I can't push the disc in). A family member's computer (mid-2010, running on the same OSX) DOES recognize the SuperDrive, but doesn't have the necessary software to rip a disc. Is this an incompatibility issue with my desktop machine?