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UltraViolet is a cloud-based digital rights library for movies and television shows that allows consumers to stream and download licensed content to multiple platforms and devices. The UltraViolet ecosystem embraces a "pay once, play almost anywhere" approach that allows users to store proofs-of-purchase of media rights in an account to enable playback of licensed content on different devices using multiple applications, and via different streaming services. UltraViolet also allows users to share access to their library with up to 5 additional people, and 12 different devices, with up to three simultaneous streams. UltraViolet is deployed by the Digital Entertainment Content Ecosystem, an alliance of 85 companies that includes film studios, retailers, consumer electronics manufacturers, cable TV companies, ISPs, network hosting vendors, and other Internet systems and security vendors, with the notable exceptions of Disney, Google, Amazon.com and Apple. ==Operation== Consumers can create a free UltraViolet account, either through a participating UltraViolet service provider, or through the official UltraViolet website. An UltraViolet account is a Digital Rights Locker where licenses for purchased content are stored and managed irrespective of the point of sale. The Ultraviolet account holder is allowed to share their library with 5 other users, which are called members. Consumers can acquire UltraViolet rights by purchasing a physical disc that includes an UltraViolet activation code, by purchasing a movie directly from an electronic retailer, or by using a disc to digital service. Disc to Digital services allow consumers to insert a DVD or Blu-ray into their computer's disc drive, scan it to verify ownership, and then add it to their UltraViolet collection for a small fee. Several retailers including Vudu, CinemaNow, and Flixster now offer this service. Consumers can then stream or download their UltraViolet content from any participating retailer. Participating retailers are listed in the table below. The UltraViolet digital locker does not store video files, and is not a "cloud storage" platform. Only the rights for purchased content are stored on the service. UltraViolet only coordinates and manages the licenses for each account, but not the content itself. By creating a digital-rights locker rather than a digital media storage locker, UltraViolet bypasses the cost of storage and bandwidth used when the media is accessed and passes that cost on to various service providers. In addition, by only managing the rights and licensing of content, UltraViolet insulates itself from future technological advances, allowing users to keep watching content they have purchased. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「UltraViolet (system)」の詳細全文を読む スポンサード リンク
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