how to save rtmp stream flv

download rtmpdump :
http://rtmpdump.mplayerhq.hu/
sudo apt-get install rtmpdump 
sudo port install rtmpdump

rtmpdump -r "rtmp://stream.myonlinewebinar.com/cfx/st/lbxxx/newxxx.flv" -o 01.flv
if stuck :
rtmpdump -r "rtmp://stream.myonlinewebinar.com/cfx/st/lbxxx/newxxx.flv" -o 01.flv --stop 3600 
continue :
rtmpdump -r "rtmp://stream.myonlinewebinar.com/cfx/st/lbxxx/newxxx.flv" -o 02.flv
--start 3600 --stop 7200




reference :
http://all-streaming-media.com/record-video-stream/rtmpdump-freeware-console-RTMP-downloading-application.htm
http://stream-recorder.com/forum/do-you-use-rtmp-dump-rtmpdump-tutorials-t3926.html?s=0a7d48322bdecbb92e524308eb85f581&