Part 1: Why 4K UHD Player Important for HD TS/1080P/4K Part 2: 10 Best 4K Media Players for Windows and Mac.Part 1: Why 4K UHD Player Important for HD TS/1080P/4K.Just find why it is important to choose an Ultra media player and learn more about the features of these programs and choose the desired one according to your requirement. The article has a complied list with the top 10 best free 4K video players for Windows and Mac. In order to have a nice audiovisual experience, choose a Real 4K UHD player is important for the HD TS, 1080P, 4K or 8K videos. If you just use the default media player to playback 4K video files, you might get the blurred video and even freeze.