Date Added: Dec 2011
Ideal online Video on Demand (VoD) system should make available any video at any time with smooth VCR like functions such as fast forward, fast backward during playback. Providing them by unicast streaming (dedicated channels) is expensive and ties up resources in networks causing blocks. Video data are bulky and need high bandwidth for real time playback in networked storage and playback environment. The resource blocking manifolds when multiple users go online. Sustainable performance can be attained by identifying conditions and bounds for networks, servers and the receiver equipment. Modern video data follows framed structures and makes use of relative coding.