Digital rights management  

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Digital rights management (DRM) is an umbrella term that refers to access control technologies used by publishers and copyright holders to limit usage of digital media or devices. It may also refer to restrictions associated with specific instances of digital works or devices. To some extent, DRM overlaps with copy protection, but DRM is usually applied to creative media (music, films, etc.) whereas copy protection typically refers to software.

Digital rights management has and is being used by content provider companies such as Sony, Apple, Microsoft and the BBC.

The use of digital rights management has been controversial. Advocates argue it is necessary for copyright holders to prevent unauthorized duplication of their work to ensure continued revenue streams. Opponents, such as the Free Software Foundation, maintain that the use of the word "rights" is misleading and suggest that people instead use the term digital restrictions management. Their position is essentially that copyright holders are attempting to restrict use of copyrighted material in ways not covered by existing laws. In practice, all widely-used DRM systems have been defeated or circumvented when deployed to enough customers. Protection of audio and visual material is especially difficult due to the existence of the analog hole, and there are even suggestions that effective DRM is logically impossible for this reason.

See also

Unless indicated otherwise, the text in this article is either based on Wikipedia article "Digital rights management" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic. See Art and Popular Culture's copyright notice.

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