use rtmpdump
Code:
rtmpdump -r "rtmpe://fms-fra13.rtl.de/voxnow/" -a "voxnow/" -f "WIN 15,0,0,189" -W "http://cdn.static-fra.de/now/vodplayer.swf" -p "http://www.voxnow.de/shopping-queen/gruppe-hamburg-tag-1-zina.php?container_id=182305&player=1&season=2014" -y "mp4:1784/V_601363_CR24_N33540_110661_h264-mq_23454592ee6166d9b6ba289d1cc392.f4v" -o "shoppingQueen.flv"