A video with a 4320p (7680×4320) playback option has appeared on YouTube. According to the video description for "Ghost Towns in 8K", it was "Filmed on the RED Epic Dragon 6K in Portrait orientation and then stitched together in Adobe After Effects. Some shots simply scaled up by 125% from 6.1K to meet the 7.6K standard."
Very few people on the planet will be capable of playing the upscaled video in its full glory. The NHK and Panasonic plan to trial 8K broadcasting during the 2020 Tokyo Olympics. Perhaps YouTube should add an intermediate 5K (5120×2880) option for Apple and Dell users.
(Score: 1, Informative) by Anonymous Coward on Saturday June 13 2015, @03:16PM
4k h.265 video/decode is becoming pretty common, even on phones without a 4k screen. 8k? Demos exist but they are gaming.
http://www.guru3d.com/news-story/8k-shots-from-unreal-engine-4s-tech-demo.html [guru3d.com]