Video.

These videos can be played in the Windows Media Player (WMP) or in the a Flash player.
Tips for WMP Viewing after the Video starts to play:
MS Internet Explorer: For full screen Click right Mouse button and select 'Zoom→Full Screen'
Firefox: Download the new WMP plug-in from Microsoft at:
 http://port25.technet.com/videos/downloads/wmpfirefoxplugin.exe
For full screen Click right Mouse button and select 'Zoom→200% or Full Screen'
Opera: For full screen Click left mouse button 'On Black Border' and then the right Mouse button and select 'Zoom→200% or Full Screen'