If you're looking for UHD 4K Makemkv (redfox might also apply) ripping, go here
The process for remuxing 4K UHD Atmos tracks with 3D blu-ray video tracks is the same as it is described here.
So as we did with Gravity here https://www.avsforum.com/forum/39-net...os-how-do.html
, I'm going to attempt to create an ISO or MKV file of "Fantastic Beasts and Where to Find Them" with the 3D video track from the 3D bluray and the Dolby Atmos track from the 2D bluray. Last time I personally did the ISO version and it worked surprisingly easily; however, I believe I no longer have the DVDFab license--not to mention that, last time I checked, it was pretty difficult to use their software due to their legal troubles.
This is for creating an MKV file for playback on a 3D-capable computer or media player device like a KDLinks 720, which I have. If you don't already have a system like this capable of playing back 3D MKV (or other types), this thread is above-and-beyond what you need and I cannot help you get there. And, no I will not rip these files to a disc and send it to you nor will I send you the completed product in a stand-alone file for download. I may rip my own movies but I am anti-pirating to a near boy-scout level.
I used the MKVToolNIX method. (Download page
--I imagine most people will need to scroll down to "Windows" and click the link for the direct download page of the installer package.) I ripped the two MKV files initially using MakeMKV and then via MKVToolNIX selected the 3d video file and the TrueHD Atmos audio track in the "Input" tab of MKVToolNIX. Be sure to select the proper file destination on the "output" tab.
One weird thing that happened was that MKVToolNix initially named the file a ".mk3d" file, which my KDLINKS did not recognize. However changing it to ".mkv" worked just fine.