updated 03:20 pm EDT, Fri July 9, 2010
YouTube now supports greater than HD video
YouTube today touted a first in web video as it became the first to support greater-than-HD video. It can now handle movies up to 4K widescreen, or 4096x3072; the resolution is about four times larger than 1080p and is dense enough to remain sharp at distances that would normally be reserved for 4K projectors. It can also handle intermediate steps such as 2K and is invoked just by choosing the original video size.
Playing back video larger than HD needs both a high-speed Internet connection and a fast system. Most computer displays also can't show 4K at its full quality, although higher resolution 27- and 30-inch displays can render 2K. Capturing video is more difficult and will currently be limited to pro-grade cameras such as the RED ONE.