Somebody used mplayer and DSS? Prompt, whether it is possible to force to work them together? Problem is "FPS not specified in the header or invalid, use the -fps option." Log look below. In the documentation and FAQ I have not found the information. Igor Tseglevsky. Initiated "video/X-QT" RTP subsession Sending request: SETUP rtsp://beast.ipnet.ru:80/demo/t3-domestic_trailer_m480_hinted.mov/trackID=4 RTSP/1.0 CSeq: 4 Transport: RTP/AVP;unicast;client_port=1118-1119 Session: 2582957808416002132 User-Agent: MPlayer (LIVE.COM Streaming Media v2003.07.13) Received SETUP response: RTSP/1.0 200 OK Server: DSS/4.1.3 (Build/412.45; Platform/FreeBSD) Cseq: 4 Session: 2582957808416002132 Last-Modified: Wed, 09 Jul 2003 06:58:57 GMT Cache-Control: must-revalidate Date: Fri, 25 Jul 2003 11:09:54 GMT Expires: Fri, 25 Jul 2003 11:09:54 GMT Transport: RTP/AVP;unicast;client_port=1118-1119;source=62.16.100.40;server_port=6970-6971;ssrc=50B88A3E Sending request: PLAY rtsp://beast.ipnet.ru:80/demo/t3-domestic_trailer_m480_hinted.mov/trackID=4 RTSP/1.0 CSeq: 5 Session: 2582957808416002132 Range: npt=0,000- User-Agent: MPlayer (LIVE.COM Streaming Media v2003.07.13) Received PLAY response: RTSP/1.0 200 OK Server: DSS/4.1.3 (Build/412.45; Platform/FreeBSD) Cseq: 5 Session: 2582957808416002132 RTP-Info: url=trackID=3;seq=48134;rtptime=2094682354,url=trackID=4;seq=56769;rtptime=1190861561 ==> Found video stream: 0 [V] filefmt:21 fourcc:0x33515653 size:0x0 fps: 0,00 ftime:=0,0000 FPS not specified in the header or invalid, use the -fps option.