The message means that you are missing a "codec" that is needed to play a
video file. See http://www.soniacoleman.com/Tutorials/PowerPoint/multimedia.htm for how
PowerPoint handles multimedia and the section on codecs. What file is
giving you this error? Where did the file come from? Is it from your
camera? If you know the codec that was used to format it, let us know and
perhaps we can provide some download sources.
--
Sonia, MS PowerPoint MVP Team http://www.soniacoleman.com
(Tutorials and Autorun CD Project Creator)
PowerPoint Live! - Featured Speaker
Tucson, AZ; October 12-15, 2003