Video on demand
From Wikipedia, the free encyclopedia
Video on demand (VOD), sometimes called Audio video on demand (AVOD), systems allow users to select and watch/listen to video and/or audio content 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 program and it begins to play on the television set almost instantaneously, or downloading to a DVR rented from the provider for viewing in the future.
