MPEG-4 - MPEG-4 builds on MPEG-2 by allowing greater use of multimedia and graphics. It also offers better compression. Its for use in digital television, interactive graphics and interactive multimedia (which includes video.)  MPEG-4 delivers video quality as good as MPEG-2 but at a significantly lower bit rate.
http://en.wikipedia.org/wiki/MPEG-4
www.m4if.org


MPEG