Download the following individual Mpeg-1 files for PowerPoint style presentations by clicking on the name of the video. These are all zip files and must be unsipped to use them (Mpeg-1, 640 x 480 pixels)
In order to lesson the chance of a failed download please consider turning off your screen savers and energy saving features. These features and other like them may shut down your computer while the computeris trying to download one of these files.