If you're looking for a way or a 1-click Blu-ray copy software app that could 1:1 backup Blu-ray on Mac OS X El Capitan with no quality loss and disc compression neither for freely watching, this place is where you should stop to focus and read on.
Considering a great many of Handbrake users suffer from Mac OS X El Capitan incompatibility problem, here recommends you a Handbrake alternative for Mac to make DVD and Video playable on Mac OS X 10.11.