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    "abstract": "The growth of IP based service in the national and international market has been tremendous, and the traffic volume is comparable to ordinary voice. At the same time the cost of IP technology is considerably less than that of ATM and SDH. The consequence is that telecom operators are constructing new IP networks with the intent of converging all services to IP. The result for the broadcaster is that it will be more economical to base new contribution and distribution networks on IP. The Pro-MPEG Forum has proposed two standards for transport of video over IP. Code of Practice 3 (CoP 3) covers compressed video in the form of MPEG-2 Transport Streams. This standard is well advanced and equipment is available from several vendors, as being demonstrated at this event. Code-of-Practice 4 is similar to CoP 3 and concerns transport of uncompressed video - SDI. This paper describes the experience with using CoP 4 for contribution. Moreover, the paper includes a description of the standard and configuration trade-off for SDI transport.",
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        "affiliation": "T-VIPS",
        "name": "Helge Stephansen"
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        "affiliation": "Media Netwerk",
        "name": "Tom Erik Krognes"
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    "docTitle": "Experience with SDI Contribution over IP Network",
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