DVD player won't open or play movie when DVD inserted in USB Superdirve
I have an iMac updated to macOS Mojove 10.14.6 and a USB connected DVD Superdrive. When I put a DVD in, nothing happens. The DVD player doen't open and no movie plays. I can't eject the DVD by normal means. The computer acts like it is busy and nothing (like system preferences) can be opened. Unable to shut down except by the button on the back. The only way I can get the DVD out is to hold the eject button while the computer starts again. Then everything is retruned to normal. This happens repeatedly with burned and none burned DVDs. I bought a new Superdirve (delivered today) thinking it was a problem with my original Superdrive, but the same problem persists.