Digital Living Network Alliance
The Digital Living Network Alliance (DLNA) is a non-profit collaborative trade organization established by Sony in June 2003, that is responsible for defining interoperability guidelines to enable sharing of digital media such as music, photos and videos between consumer devices such as computers, TVs, printers, cameras, cell phones, and other multimedia devices. These guidelines are built upon existing public standards, but the guidelines themselves are private (available for a fee). These guidelines specify a set of restricted ways of using the standards to achieve interoperability.
DLNA uses Universal Plug and Play (UPnP) for media management, discovery and control. UPnP defines the type of device that DLNA supports ("server", "renderer", "controller") and the mechanisms for accessing media over a network. The DLNA guidelines then apply a layer of restrictions over the types of media file format, encodings and resolutions that a device must support.
As of January 2011, over 9,000 different devices have obtained "DLNA Certified" status, indicated by a logo on their packaging and confirming their interoperability with other devices. It is estimated that more than 440 million DLNA-certified devices, from digital cameras to game consoles and TVs, have been installed in users' homes.
Read more about Digital Living Network Alliance: History, Specification, Member Companies
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