For consumers still living with a standard-definition television, DVD-quality video is generally accepted as good enough. For the latest whiz-bang high-definition plasma, Blu-ray or HD-DVD is optimal. But what does the future hold?
One possibility is Ultra High Definition Video, a standard proposed by Japanese public broadcaster NHK.
UHDV operates at a video resolution of 7680x4320 pixels, which is 16 times the pixel count of today's most advanced Full HD screens (which operate at 1920x1080 pixels). Don't get your hopes up just yet, however; the technology is still in its testing phase and it will be years before it receives any kind of mainstream release.
One key problem is that the vast majority of cameras are unable to record at such high resolutions, although there are products like the RED range of professional cameras that can handle 3K, 4K and even 5K resolutions. These aren't quite up to the UHDV standard, but they're far closer than the majority of cameras.
Read more @ PC World