计算机网络与多媒体技术的飞速发展，对传统远程通信领域产生了深远的影 响，越来越多的多媒体信息出现在Internet上，视频点播(Video on Deman...

计算机网络与多媒体技术的飞速发展，对传统远程通信领域产生了深远的影 响，越来越多的多媒体信息出现在Internet上，视频点播(Video on Demand，简 称VOD)也随之产生。 - The rapid development of computer network and multimedia technology has great influnce on telecommunication. More and more multimedia information appears on the Internet,thus video on demand (for short VOD) also come into being. VOD is an interactive multimedia information services form.The users are able to select video information on demand according to their need and interest and control the process.VOD enjoys a brigt future and has already become hot investigation in the field of computer network and multimedia technology