Synchronized Multimedia Integration Language (SMIL)
Synchronized Multimedia Integration Language (SMIL) is an XML language. Although content authors can create their own XML languages for such purposes, SMIL is the recommended language for creating multimedia presentations because it includes accessibility and internationalization features. SMIL is supported by two popular user agents for multimedia, RealPlayer and QuickTime Movie Player.
The W3C (http://www.w3.org/TR/SMIL-access/) points out that:
"Dynamic multimedia presents a number of challenges to people with disabilities and to authors of

