Hay (Husky) wrote:
http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2009-June/020620.html
Unfortunately OGG Theora didn't make it as the default codec for the HTML5 <video> element in the spec. Until one of the two major formats (Theora and H264) is clearly the major format the HTML5 spec will not specify a default codec for the <video> element.
Technically yes, that's the same state things have been in for a year.
In practice, however... On the desktop browser end, Mozilla, Google, and Opera are all supporting Ogg Theora & Vorbis. Microsoft doesn't even support <video>, so only Apple is not supporting Ogg out of the box of those implementing it so far.
(Desktops are relatively versatile and upgradeable however; mobile browsers which can't easily be replaced or given codec plugins might be more interesting territory for a codec battle royale.)
-- brion