use rtmpExplorer
Code:
rtmpdump -r "rtmp://video.c-spanarchives.org:1935/bwcheck" -a "bwcheck" -f "WIN 11,5,502,146" -W "http://www.c-spanvideo.org/videoLibrary/assets/swf/CSPANPlayer.swf" -p "http://www.c-spanvideo.org/program/310019-1" -y "mp4:downloads/310/310019-1/310019-1-MP4-STD/310019-1-MP4-STD_01.mp4" -o "output.flv"
