A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
well, FWIW:
I had 17 photos I wanted to loop at the top of the presentation. I set up a slide show (use whatever app you want) then recorded the slideshow with a screen capture program.
Save as a wmv or mp4, then just add as a movie. You can set the movie to continually loop until clicking for the next slide.