MacXDVD has launched a H.265/HEVC converter for Mac OS X and Windows to help convert 1080p 4K UHD 8K H.265 to H.264, MP4, AVI, MPEG4, etc. to formats accepted by TV, media player, mobile devices, as well as to convert H.264 to H.265.
MacX Video Converter Pro (http://tinyurl.com/22ujyvx) has built-in 320 video codecs and 50+ audio codecs that provide a wide range of H.265 decode/encode choices. A demo is available for download. MacX Video Converter is on sale for $34.95 for a limited time.