Apple's streaming server (Darwin, compiled for Linux, Windows, OS-X) does not cache streaming data on the local hard disk. It is compatible with Windows and Mac clients. The image quality of Video Furnace is only good when compared to Sorenson encoded (very good) and H.264 (excellent) materials (assuming similar bandwidth and display size). Video furnace, from what I understand, provides a converter to allow standard Television sets to be connected to their system - this would mean that the signal could be recorded with a standard VCR or a DVD burner. So there is a copyright issue. REAL Server's cost is very high for multiple streams. I have no experience with any of the Microsoft solutions (can somebody, please, provide us with some info?). Dartmouth is in the process of setting up a Video Furnace system to replace its 60 channel coax system. The system is already live and will be available to students at the beginning of the summer term. There is a lot of talk about "video on demand" - I doubt that this is going to be implemented soon, because of the cost of additional hardware for each channel. Otmar Foelsche *********************************************** LLTI is a service of IALLT, the International Association for Language Learning, and The Consortium for Language Teaching and Learning (http://consortium.dartmouth.edu). Join IALLT at http://iallt.org. Otmar Foelsche, LLTI-Editor ([log in to unmask]) ***********************************************