theweatherelectric writes "According to the YouTube blog, YouTube is now transcoding all new uploads to WebM, whereas previously the focus was on 720p and 1080p video. Google's James Zern writes, 'Transcoding all new video uploads into WebM is an important first step, and we're also working to transcode our entire video catalog to WebM. Given the massive size of our catalog — nearly 6 years of video is uploaded to YouTube every day — this is quite the undertaking. So far we've already transcoded videos that make up 99% of views on the site or nearly 30% of all videos into WebM. We're focusing first on the most viewed videos on the site, and we've made great progress here through our cloud-based video processing infrastructure that maximizes the efficiency of processing and transcoding without stopping. It works like this: at busy upload times, our processing power is dedicated to new uploads, and at less busy times, our cloud will automatically switch some of our processing to encode older videos into WebM. As we continue to transcode the remaining inventory, we'll keep you posted on our progress.'"