YouTube experimenting with 720p HD video
But now it looks like YouTube is starting to add some honest to goodness high definition, 720p videos to the site. Members of the Video Help forums have spotted some videos available in HD, including the popular "Where the Hell is Matt" video.
Not all videos are going to be available in HD rigiht away, because most videos uploaded to YouTube aren't high definition in the first place, and because YouTube appears to be quietly testing the feature on a small number of videos. It appears YouTube is also experimenting with stereo sound for its online videos. Up until recently most videos were mono only.
YouTube is hardly the first online video site to dabble in HD. DailyMotion, Vimeo, and several other video portals have been offering HD movies for a while, but YouTube is stll by far the most heavily trafficked web video site.