Here's the best workflow of playing 4K Blu-rays on PS4 Pro in best 4K resolution.
Now, PS4 Pro is up-to-date to support 4K video playback, so you can enjoy the 4K videos (saved as .mp4) on your 4K TV connected with PS4 Pro smoothly. However, compared to Xbox One S, PS4 Pro is still lack of 4K UHD Blu-ray playback, so you can't play 4K Blu-ray on PS4 Pro directly. Fortunately, it doesn't need to as there are lots of positive way to do it. In this page, I suggest you convert 4K Blu-ray to a PS4 Pro supported 4K MP4 video for playback in best 4K resolution.
To convert 4K Blu-ray to 4K MP4 video for PS4 Pro, you can take advantage of a 4K Blu-ray to PS4 Pro converter. Here, Brorsoft 4K Blu-ray Ripper for Windows / Mac is highly recommended to rip/convert any (protected) 4K Blu-ray to 4K MP4 videos without losing quality. Besides, this program also allow you convert your Blu-ray/DVD discs to all popular SD and HD (3D) video formats like 4K/1080P/720P H.264 /H.265 MP4, MOV, MKV, FLV, AVI, 3GP, MPEG and more.
Free download best 4K Blu-ray to PS4 Pro converter
Guide: Convert 4K Blu-ray to 4K MP4 videos for Playing on PS4 Pro
Here we take Windows Version Brorsoft Blu-ray Ripper as example, Mac share the same steps, just keep in mind you have download the right version, Widnows platform .exe files cannot be installed on macOS – and vice versa.
Step 1. Import 4K Blu-ray movies
Install and lauch the 4K Blu-ray to PS4 Pro converter, click the "load disc" button to load 4K Blu-ray movies to the program.
Step 2. Select output format
Click "Format" bar and find "Common Video", select "H.265 MP4" as your output.
Tip: If you want to keep the Origianl 4K resolution of your 4K Blu-ray, please select the "original" drop-down option from "Size(pix)" catalogy. In this way the output Blu-ray movie will reserve the 4K resolution.
Step 3. Start to convert 4K Blu-ray to 4K MP4
With all settings, click the Convert icon, this program will convert 4K Blu-ray to 4K MP4 videos for PS4 Pro in best 4K resolution.
Once finished, click "open" button to locate the converted 4K MP4 videos and copy them to a USB Drive or Home Server.
Now you can play the converted 4K Blu-ray movies on PS4 Pro without hassle.
If you not only want to rip 4K Blu-rays, but also intent to rip DVD or convert HD Videos such as 4K XAVC/XAVC-S, MXF, M4V, AVI for PS4 Pro, Brorsoft Video Converter Ultimate (or iMedia Converter for Mac) will be your first and best choice.