ITU-R - International Telecommunication Union/ITU Radiocommunication Sector
适用范围
"Introduction This Report comprises a report on the current ""state of the art"" of digital content protection for broadcast television and related services. Recent rapid evolution in the nature of consumer use of broadcast and internet services has changed many of the old assumptions made by broadcasters and television equipment manufacturers. Television broadcasts can now be easily recorded using high-capacity personal video recorders (PVRs)@ and this content can now be shared with others over high-speed internet connections or by burning to high-capacity removable media such as DVDs. Old assumptions that a set-top-box connects to a single@ display-only@ television set are fading fast. Consumers are increasingly aware of alternative ways to enjoy broadcast content@ and are always looking for newer and more rewarding experiences. Accordingly@ there is an urgent need for content owners and broadcasters to balance the need to protect their investment with potential loss of acceptability to an educated and technically knowledgeable user community."