Situation A: If you have some Blu-ray ISO files stored on your HDD, SD card, or any external storage, you can watch them on your MacBook Pro anytime you like. You will get nothing but fail miserably when you intend rip Blu-ray ISO files on MacOS Sierra/Mac OS X El Capitan. What you need additionally is a Blu-ray ISO player that works on Mac.
Situation B: If you want to play Blu-ray iso file on your Mac with the gorgeous LED-backlit 21.5-or 27-inch display or stunning Retina display, either iMac or MacBook, it will be not as simple as inserting a DVD into Mac and then waiting for Mac to play movies automatically.
Situation C: In case you have collected some Blu-ray ISO files and want to play these ISO videos on certain MP4 players or portable media devices like iPad, iPhone, Galaxy Tab or upload to YouTube, Vimeo … you can do as follows- change Blu-ray ISO to MP4, the most widely supported format among all the media file types via MacOS Sierra. (including MacBook Pro/Air, iMac 4K/5K etc.)
Best Answer: The pointer here is, what is the best software for converting Blu-ray ISO to MacOS Sierra without quality loss and low Mb size so if it’s possible.
Hot Search: Blu-ray to iPad | Blu-ray to ATV3 | Blu-ray to H.265 MP4 | Blu-ray to iPhone 6 (Plus) | 
Because an ISO is not a video file in itself, some freeware on the market cannot help you directly convert it to MP4. When I tried Handbrake, it helps me convert ISO to MP4 video, but the output videos are in bad loss. Combed through the options to pull together the simplest, working method, I highly recommend you Pavtube BDMagic for Mac. Read the review.
This ISO converter for MacOS Sierra enables you to rip your favorite Blu-ray ISO movies to .mp4 with best quality and fast speed. Don’t worry about the quality loss. What’s more, this professional app not only can support Blu-ray ISO files, but also can deal with BDMV folders, VIDEO_TS folders, DVD discs,Decrypt Blu-ray MKB61 under MacOS Sierra/Mac OS X El Capitan, Yosemite, Mavericks, Mountain Lion. Below is a tutorial for you to batch convert Blu-ray ISO file to MP4 in MacOS Sierra. If you are a Windows user, then Pavtube BDMagic is your first choice which can transcode ISO file to MP4 or other video formats on Windows 10 easily. This helps you keep your discs from scratching, or manage your movies in a more convenient way. Here we go to check how to rip Blu-ray ISO files on MacOS Sierra/Mac OS X El Capitan.
Features: Supports the latest Mac OS –MacOS Sierra/Mac OS X El Capitan
* Play any Blu-ray disc, Blu-ray folder, Blu-ray ISO image file and any video/audio file on MacOS Sierra
* Full HD 1080p Blu-ray Disc™ playback
* Bring you lifelike audio effect with Dolby TrueHD and DTS-HD codecs
* Quickly load and start your Blu-ray movie playing
* Improve your movie watching experience with user-friendly design
Free Download This top Blu-ray ISO Ripper for MacOS Sierra: 
Other Download:
- Pavtube old official address: http://www.pavtube.cn/blu-ray-ripper-mac/
- Cnet Download: http://download.cnet.com/Pavtube-BDMagic/3000-7970_4-76177782.html
Step Guide: Ripping Blu-ray ISO to MP4 video in Mac (OS Sierra/El Capitan)
Step 1. Load Blu-ray ISO file
Just click disc button to import ISO files to this program. Or simply drag & drop your ISO files to the Blu-ray ISO to MP4 Converter. It’s also a friendly and handy tool for MacOS Sierra/Mac OS X EI Capitan users to backup DVD, convert Blu-ray/DVD ISO, and edit Blu-ray/DVD movies with simple operations. 
Step 2. Select the output format
Click Format bar to get the format list and select a proper export format. Common Video > H.264 MP4, MPEG-4 are the proper choice. 
Note: Moreover, It offers you 1:1 backup Blu-ray/DVD without quality loss and supports to rip DVD to H.265/HEVC codec and M3U8 file.
Step 3. Customize the output video(optional)
You can click Edit button to trim your favorite part from the video, crop video frame size, adjust visual effects, add watermarks, subtitles and more to personalize your videos. Plus, click the Settings icon, you can adjust the video size, frame rate, bitrate, etc. 
Step 4. Start to convert Blu-ray ISO video
When all the settings are OK, you can click the “Convert” button on the main interface to start converting Blu-ray ISO to MP4 video on MacOS Sierra keeping the best quality.
After the conversion, click the Open button to locate the resulted videos. Then, you can easily transfer the converted video files to any portable devices, video editing software or share them on YouTube, Facebook, Vimeo, etc as you want.
Besides, you can also backup Blu-ray and DVD to MacOS Sierra hard drive, copy them to Home Server, NAS for storage for storage.
As it turns out, the entire process is as simple as pie! Just leave the rest time enjoying your Blu-ray ISO files on your MacOS Sierra/Mac OS X El Capitan
For more information, feel free to visit Pavtube Media Player product page at http://www.multipelife.com/.
Read More:
- Watch 3D Movies on Mac (Macbook Pro.Air.iMac)
- Methods of Copy Files to iCloud Drive on Mac
- Edit Videos with iMovie Alternatives on El Capitan
- Mac OS X El Capitan Required System Requirements and Supported Mac Models
- Convert H.264 Video on Mac El Capitan
