Wikipedia
Annodex
Annodex is a digital media format developed by CSIRO to provide annotation and indexing of continuous media, such as audio and video.
It is based on the Ogg container format, with an XML language called CMML (Continuous Media Markup Language) providing additional metadata. It is intended to create a Continuous Media Web (CMWeb), whereby continuous media can be manipulated in a similar manner to text media on the World Wide Web, including searching and dynamic arrangement of elements.