I'm trying use rtmpdump for download some of interested streams, but 
rtmpsrv shows:
	Code:
	WARNING: Trying different position for client digest!
 and nothing happens. After CTRL+C rtmpsrv,video starts in browser.
With:
rtmpsuck
shows 
	Code:
	WARNING: Trying different position for client digest!
 and many 
	Code:
	Processing connect
app: liveedge/live_111231_16_0
flashVer: LNX 10,3,180,65
swfUrl: http://nl.nimg.jp/public/swf/liveplayer.swf?111222180432
tcUrl: rtmp://nleta05.live.nicovideo.jp:1935/liveedge/live_111231_16_0
pageUrl: http://live.nicovideo.jp/watch/co1211475?ref=rec
 and stops on
	Code:
	ThreadCreate, pthread_create failed with 11
 after it shows many
	Code:
	ERROR: RTMP_ReadPacket, failed to read RTMP packet header
Closing connection... ERROR: RTMP_ReadPacket, failed to read RTMP packet header
done!
 after that video starts in browser, but i can't stream this with rtmpdump.