* Several basic topics.
* Free. :)
* Short (2-5 minute) Quick Time movies.

http://www.corel.com/servlet/Satellite/us/en/Content/1170190221936

[link courtesy of BobMc. "Thanks, Bob."]

It does not say so, but it appears these are samples from this not free DVD:

http://store.corel.com/webapp/wcs/stores/servlet/ProductDisplay?productId=77247&catalogId=10103&storeId=10001&langId=-1

-----------------

Note: Some of these are BIG files. Rather than opening the .mov in a new window which is really sloooooow.... I had better luck in Internet Explorer by right-clicking > Save target as... and downloading the files to my hard disk for later playback.