Video on Demand
Video On Demand (VOD) systems allow users to select and watch video on demand. VOD systems either stream content through a set-top box, allowing viewing in real time, or download it to a device such as a computer, digital video recorder, personal video recorder or portable media player for viewing at any time. The majority of cable- and telco-based television providers offer both VOD streaming, such as pay-per-view, whereby a user buys or selects a movie or television programand it begins to play on the television set almost instantaneously, or downloading to a DVR rented from the provider, for viewing in the future.
