How to Play 4K Blu-ray on 5K Retina iMac?

The iMac with 5K (5120×2880 resolution) Retina display has seven times the resolution of a standard HDTV and 67% more pixels than a 4K display, which enables users to experience everything on this display like never before. If you have some 4K Blu-ray movies, you must can’t wait to enjoy the UHD movies in 5K […]