Finally ran into movies that Camtasia Recorder can't snag

I'm not sure if it was because I was viewing the movie in Internet Explorer (the page wouldn't load properly with Firefox), but Camtasia Recorder (the best screen recording program I've used thus far) couldn't record the movies played on the MSNBC Today's Show website.

Here's the link to the webpage: http://www.msnbc.msn.com/id/12065856. I was watching the BlendTec blender movies on YouTube when I came across this link on the MSNBC Today's Show page. The movie is called "Will these blenders blend?"

Anyway, when I tried recording it with Camtasia Recorder only the audio records and the video is all black, similar to trying to use the "Print Screen" function to capture stills from a movie being played in a media player the old-fashioned way (not using tricks or tools like disabling hardware acceleration or using MPC's 'save image as' function).

Could it be because I was using IE or maybe because the website uses WMP to play the video, so Camtasia is in effect using the "Print Screen" function millions of times to grab the video, but since it's the old-fashion player it will only grab black? Anyone know how to successfully grab these movies?

Edit: Figured out why Firefox was unable to load the media properly. I had to disable my AdBlock extension and now the movies will play in Firefox, though the quality seems worse than when viewing through IE. When it plays through Firefox I can capture it with Camtasia. Hopefully I won't run into anymore movies that are forced through IE. If anyone knows how to capture movies when using IE though I'd like to know what program or how to do it.

Jam it back in, in the dark.