You can view or download the 166 MB mpeg file here.
The organization of Mr. Armstrong's talk is simple and straight-forward. He is comparing two technologies, gives sufficient background on the topic and then launches into a comparison. Note that at no time does he advertise or promote one of the products over the other: his is a technical engineering talk and not a marketing presentation.
Again, the font size is reasonable, but the slides are a little dense. His images add greatly to his talk. While he could have easily just compared the compression ratios, the images showing the zooms on the various media demonstrate this very clearly. The logos on some of the slides are a nice touch.
When he placed the wrong slide on the overhead, he quickly corrected himself without bringing attention to the mistake. Bringing attention to an error does not help the presentation and will cause the audience to remember it. If you did not read this paragraph before you viewed the entire video, did you even note the error? He modulates his voice and changes his volume to add emphasis to his talk and to keep the attention and interest of the audience.
Nice tie.
His answers indicate a depth of knowledge beyond what was presented in his talk.