Word also has a save as HTML option. It actually works better in older versions and has been gradually phasing out in newer versions. But if you want text and working videos, HTML may be a good option. This has the other important advantage of students being able to access your book on computers that don't have Word.

In addition, certain versions of Acrobat can deliver active video, Flash, and sound: http://acrobatusers.com/tutorials/ea...video-pdf-file