Encoding 4K MKV to MP4 without Quality Loss
"Have some 4K MKV rips from Blu-ray, how can I play them on my Xbox 360 and Samsung TV?"
As the above user, when you got some 4K MKV files like 4K MKV rips from Blu-ray, you may wanna play these 4K MKV files on media devices like Samsung TV, Xbox 360, Apple TV, PS4... But the MKV format is not the friendly format for most popular media devices. What you need is a MKV converter to convert 4K MKV to MP4 without losing quality.
Overall, Brorsoft Video Converter is the best commendation for you. It is supremely easy to use- it can convert videos to 4K Ultra HD videos in MP4 (AVC coder) or other extension not only for playing on portable devices including Xbox, PS4, iPad, iPhone, Galaxy Tab, etc, but also for editing in Sony Vegas, Adobe Premiere Pro, Windows Movie Maker, etc...
Drag and drop your target file onto the program, choose an output format as H.264 MP4, customize the resolution to 3840 x 2160 or 4096 x 2160 4k resolution, click Convert and that’s it. Wait for the file to be converted, then click the “Open” button to get the destination video - the video in the opened folder is just the 4K one.
Plus, it can convert a batch of videos in one operation, and it has the built-in editor provide trim, crop, split, and merge functions for you to customize your 4K videos. If you want to convert 4K MKV to MP4 on Mac, please get Video Converter for Mac.