That's because the current version of Handbrake, say, v0.9.5, is not compatible with Mac OS X 10.9 Mavericks and 10.8 Mountain Lion. Reasons you’ll love HandBrake: Convert video from nearly any format Free and Open Source Multi-Platform (Windows, Mac and Linux) Download HandBrake 1.3.3 (Other Platforms) It's free! If you want to use Handbrake on Mac OS X to convert video or DVDs, you'll fail. HandBrake is a tool for converting video from nearly any format to a selection of modern, widely supported codecs. The encoding time will depend on several variables including: the duration of the video file, the speed of your Mac computer and which Mac OS, Mac OS X Tiger, Leopard, or Mac OS X. Step 4: Start to convert video with Handbrake on Mac OS X Click on the Start button on the left top of Mac version HandBrake. The Handbrake for Mac OS X 10.11 doesn't run as smoothly as the one abovementioned.
If your MacBook or iMac is running on Mac OS X El Capitan or later version and you need to make libdvdcss workable on Mac OS X 10.11 for your Handbrake DVD ripping, you are suggested to prepare yourself mentally. How to Make Handbrake Libdvdcss Workable on Mac OS X El Capitan or Later