Can't get any recorders to work

[trainwreck]

I've tried just about all the recorders(Replay MC, streamtransport, Orbit, etc..) and none of them seem to work. I'm pretty new to this and I've tried a go at rtmpdump following some tutorials, but I'm in over my head and I can't get it to work.

I'm trying to get most of the videos from the DAT series (note the first few blue colored "play" icons denotes that the video is free)
http://www.coursesaver.com/videos/DAT/

Starting with this video:
http://www.coursesaver.com/videos/wa...perations-382/

If I can get someone to help me figure out the first one, I may be able to do the rest myself.