videoondemand

Video on demand (VOD) is a system that allows users to select and watch video content when they choose to start playback. Unlike traditional broadcast schedules, VOD content is stored on a server or in the cloud and delivered over the internet, a cable, or a satellite network. It enables streaming or downloadable viewing and relies on metadata and search tools to locate titles.

Common forms of VOD include subscription video on demand (SVOD), advertising-supported video on demand (AVOD), and transactional video on demand (TVOD). SVOD provides access to a library of titles for a recurring fee. AVOD offers free content supported by advertising and may include personalized recommendations. TVOD charges per title, rental, or purchase.

Delivery and technology involve encoding and storing content with digital rights management (DRM) protections, and distributing it via streaming protocols such as HLS (HTTP Live Streaming) and MPEG-DASH. Content is delivered through content delivery networks (CDNs) to minimize buffering, with apps and devices supporting playback across televisions, computers, and mobile devices.

Licensing and catalog management shape what is available in each market. Providers acquire distribution rights for films, TV series, and other media, often negotiating regional licenses that affect availability and price. Metadata, search, and recommendation systems help users discover content, while regional restrictions and licensing windows can vary.

Impact and trends include increased consumer control over viewing, the rise of original content produced for on-demand services, and competition among streaming platforms. Monetization models, data privacy, and licensing costs continue to influence the evolution of VOD and related technologies.