You can burn your PowerPoint to CD with the tool below:
http://www.ppt-to-video.com/powerpoint-to-dvd-overview.html#105
It can help you directly burn your PowerPoint to DVD/CD with
transitions, animations, sounds and movie clips in the original
PowerPoint retained.
When operating the program, click Disable DVD Menu button, then the
output CD will be able to run automatically without stop.
Thus, it can loop 24/7 in your plant.
You can get the free trail version of it from:
http://www.ppt-to-video.com/powerpoint-to-dvd-download.html#105