Question for the list on MPEG

[Tom Shott <toms@scic.intel.com>]

As a recent new owner of a 760CD (darn. should have waited for the new
models) I have a question.

The 760CD includes MPEG decompression hardware built in. OK, so I tried the
demo disk and after fiddling around with screen resolutions I got it to
play back great quality full-screen video.

Now I'd like to insert a full-screen video sequence into my powerpoint
presentation. How do I get software or hardware that will compress a video
stream to MPEG? 

I have two video sources in mind. One is off a video camera. The other is
an animation sequence out of a rendering program.

Has anybody done this for presentation graphics? Does anybody have a
suggestion on where on the net I should be looking for this type of
information?