Code:
rtmpdump -r "rtmp://x15.cdn.media.ihost.md:1900/streamer" -a "streamer?hash=76be1971aa14738ec1cce6722330dea8" -f "WIN 11,6,602,180" -W "http://castasap.com/player/player.swf" -p "http://castasap.com/embedhd.php?chname=erhehtherth&width=640&height=385" -y "erhehtherth_zqn4l4" -o "erhehtherth_zqn4l4.flv"