I would appreciate someone clarifying the story for AVI. Background: I have a client who needs a PowerPoint presentation on Windows with linked movies on some slides. Said client insists I use AVI movies. My research leads me to believe: 1. Anyone who creates an AVI movie is not GUARANTEED that it will play back on another computer. 2. An AVI movie which plays fine under Windows Media PLayer on one machine will not be GUARANTEED to play back on another computer under Windows Media PLayer. 3. This situaiton occurs because Windows installations do not install a universal set of codecs. (I am thoroughly familiar with codecs, although only with ones that really work.) 4. QUESTION: How do I create an AVI file that will actually play GUARANTEED under a standard install of Windows? Any info clarifying this incredible situation gratefully received. You will easily detect the brand name of the computer I use, since I am oriented to solutions which actually work in a professional consulting environment.