Video on Demand (VoD)

Video on demand allows viewers to request immediate access to video content on their PCs or TVs. VoD provides a wide selection of video programming including sports, entertainment, educational programs and feature films. In general, TV is based on broadcast technology, while VoD is provided as a unicast transmission. VoD is also very commonly used for videoconferencing. Although VoD is very popular, it is not widely used due to the bandwidth limitations of current networks.