Google OS blog reports that Reader now supports audio and video tags under HTML5. What’s that? More a/v media in my Reader stream? Where do I sign up?!
Luckily, you don’t have to sign up anywhere. As long as you have a browser compatible with the HTML5 tags (read that as pretty much anything other than IE) you’ll be able to see the new content as it is added. Though there is a forewarning even for Firefox and Opera users – presently neither of these browsers support the H264 video standard, so you won’t be able to view video encoded in this manner.
source: http://asurl.net/kc3