Use of Ogg formats in HTML5
, HTML5 video is not currently as widespread as Flash videos, though of recent rollouts of experimental HTML5-based video players on websites, DailyMotion is so far the only one to use Ogg Theora and Vorbis formats, which suggests an increasing early interest in adopting HTML5 video.
Vorbis
As originally recommended by HTML 5, these web browsers natively support Vorbis audio (without a plug-in) using the codice_1 element: Mozilla Firefox 3.5 (and later versions), Google Chrome (from version 3.0.182.2), SeaMonkey (from version 2.0). Opera 9.5 experimental video builds released in 2007 and 2008 have only codice_2 support and play back Vorbis audio included in Ogg video files. Opera 10.5 browser has support for Vorbis audio, WAVE PCM audio and Theora video.