You can also use rtmpdump... it download just fine...
Code:
rtmpdump -r "rtmpe://cp167078.edgefcs.net/vod/" -a "vod/?auth=eaFb2bGbfaAb8cRducdcmcYd6cibAb8cyalclbedPafdYaTd5cVbRbHbudTaacTcAbj-bugXPy-ctQa-0RY39lpCC3qoDCq0CzouCp&aifp=v002&slist=owfs_rmc/download/TVCAST_2014_09_15_1/33705233B06F31324638387_muploader_a_480P_854_1024_128.mp4&vid=4D8212B2A0BC526C6C9C68D62C1E1C7CA651" -f "WIN 13,0,0,214" -W "http://serviceapi.rmcnmv.naver.com/resources/flash/NVP_web_player_core.swf" -p "http://tvcast.naver.com/v/205437" -y "mp4:owfs_rmc/download/TVCAST_2014_09_15_1/33705233B06F31324638387_muploader_a_480P_854_1024_128.mp4" -o "2014-09-18_10-45-59_33705233B06F31324638387_muploader_a_480P_854_1024_128.flv" -V
