Use of Ogg formats in HTML5


The HTML5 draft specification adds video and audio elements for embedding video and audio in HTML documents. The specification had formerly recommended support for playback of Theora video and Vorbis audio encapsulated in Ogg containers to provide for easier distribution of audio and video over the internet by using open standards, but the recommendation was soon after dropped.

Motivation

Because some visitors and publishers choose not to take part in the use of proprietary software, web content has been made available through open standards in order to reach these users. As multimedia is already mainstream on the web through proprietary data formats and browser plugins, developers had hoped Theora and Vorbis would become part of the HTML5 specification.
Users affiliated with the free software movement claimed the following advantages:
CTO at Opera Software, Håkon Wium Lie explained in a Google tech talk entitled "The