Here is a new multimedia authoring tool for you to explore (if you both operate a recent Windows system and own a recent version of Microsoft Office). Producer is an intuitive and FREE product allowing the integration of many media types. My understanding that it is primarily a way to connect PowerPoint slides with other things (audio, video) using wizards and then publish (CD, web, etc.). Lots of options. Did I mention free?
Here is a demo I created – Demo. (Windows users only)
Only downside – both production and viewing (I think) must be on the Windows platform.
If you cannot examine the demo, here is a screen capture of the demo to give you some insight into what one display format looks like (a small video running in the upper left corner is keyed to changing PowerPoint slides on the right).
