>i want to transmit MPEG4 media through RTP/RTCP (don't want to use >RTSP).. Then you're out of luck. To stream MPEG-4 using our library, you need to use RTSP. We have both muticast ("testMPEG4VideoStreamer") and unicast ("testOnDemandRTSPServer") demo applications for this. -- Ross Finlayson Live Networks, Inc. http://www.live555.com/