RTSP/1.0 412 Precondition Failed
Date: Sat, 14 Apr 2012 22:34:17 GMT
CSeq: 2
Server: WMServer/9.5.6001.18223
Supported: com.microsoft.wm.srvppair, com.microsoft.wm.sswitch, com.microsoft.wm.eosmsg, com.microsoft.wm.fastcache, com.microsoft.wm.packetpairssrc, com.microsoft.wm.startupprofile

