Here is a quick 2-page PowerPoint tutorial that explains How
to Insert Video into your PowerPoint Presentation.
It is provided by the Center for Educational Technology at Emory
University, which provides informational software tutorials to assist
faculty, students, and staff. To include video files in Powerpoint you
must have them in a digital video file format. Although Powerpoint
claims to support various dv formats, .avi files are the most reliable
when playing on PCs. This 9-step PowerPoint tutorial is in pdf format
and is 256kb in size.