Vis-a-vis the digital contents of the music animated picturepicture and the like, administering encoding, and the like the framework which prevents the illegal copy and outflow, makes proper circulation promote, and the technology which is utilized to that it is. It is not to point to just illegitimate prevention technology, it designates that entirely the relationship of Win-Win of the literary work authority circulation enterprise buyer who participates to the circulation of the digital contents is constructed as purpose.
Broadband conversion advanced, contents circulation of the music movie picture and the like started developing in earnest on Internet. Those where it comes out simultaneously with this flow, are the problem, "right protection of the literary work authority".
As for the digital contents without dropping quality, duplicating, in addition to, being the place where the literary work authority does not participate partly due to the fact that distribution is easy, there is danger to which the book circulates. Because of this market value depreciated, the literary work authority was present originally the fear of becoming not be able to guarantee the profit which it should enjoy. There is a place where one of the aim of DRM holds down the risk of contents outflow by the fact that the technical setting up is administered to the book, guarantees the guarantee of price.
As a movement of IT industry, "being healthy, effective establishing the circulation of the digital contents" in purpose, you start the "contents ID forum" in 1999, you present the circulation model which is due to the grant of contents ID. In addition, the standardization group OASIS of XML (Organization for the Advancement of Structured Information Standards), installing the technical committee "OASIS Rights Language Technical Committee which" decides the XML standard for DRM in 2002 April. "XrML (Extensible Rights Markup Language)" of the ContentGuard corporation which participates in this commission in the base, it has tackled the technical decision which supports the legitimate transmission of the digital contents.
Also the movement of contents industry such as music and movie is active. For example in case of music CD, the sale decreases 1998 to peak yearly, has become serious problem. In order to prevent this, at the principal record company "CDS (cactus data shield)" of Midbar and, applying the illegal copy prevention technology of "SAFEAUDIO" of Macrovision and so on, the movement which prevents contents outflow is advanced.
The typical product of DRM, "Electronic Media Management ()" of IBM and "Windows Media Digital Rights Management" series of Microsoft and is "Adobe Content Server" of and so on.
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