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.
I don't understand Juhn Jac's suggestion to set the presentation to loop until stopped. I understood that you wanted to play the video normally, then go to the next slide when the video ends, automatically, w/o having to stop the video or anything.
It should work if you set the video's animation settings/playback to start With Previous so that it starts as soon as you display the slide that it's on.
Then in the Transition tab, set the slide advance to occur after, say, 2 seconds; any value will do, so long as it's LESS than the duration of the video; the advance won't happen until after the video finishes.