>So there is no problem to generate files bigger than 2Go on the box. > >I am quite lost... I am also puzzled by this. Which RTSP *server* are you using? (Is it ours - e.g., "testOnDemandRTSPServer"?) Are you sure that the server is *sending* more than 2^31 bytes of data? -- Ross Finlayson Live Networks, Inc. http://www.live555.com/