No I didn't know, and in some respects I wish I still didn't.
I can see how this subject matter would work well in its original presentation format, where other materials are combined with student interaction.
But from a 'Video Only' perspective, frankly it was rather dull. How much better it would have been if it was shorter (say about 1 Minute Long) with a real 'audience grabbing' point at the end.
Competently put together though.
COMPAQ something or other with 500Gb Boot Disk, 1Tb external Firewire Disk, 4Gb Memory and a super duper sound card, 19" TFT Monitor etc etc etc
Sony TRV33e : Sony TRV310e : Canon XM2
Sony Vegas Studio editions to v11
Remember, there is always more to learn than there is to teach.