There is an absence of evidence about the DRM capability in preventing copyright infringement, some complaints by legitimate customers for caused inconveniences, and a suspicion of stifling innovation and competition. For instance, tractor companies try to prevent farmers from making repairs via DRM. industries) have expanded the use of DRM technologies to various hardware products, such as Keurig's coffeemakers, Philips' light bulbs, mobile device power chargers, and John Deere's tractors. For examples, they can help the copyright holders for maintaining artistic controls, and supporting licenses' modalities such as rentals. Many users argue that DRM technologies are necessary to protect intellectual property, just as physical locks prevent personal property from theft. Such laws are part of the United States' Digital Millennium Copyright Act (DMCA), and the European Union's Information Society Directive – with the French DADVSI an example of a member state of the European Union implementing that directive.

Laws in many countries criminalize the circumvention of DRM, communication about such circumvention, and the creation and distribution of tools used for such circumvention. DRM technologies include licensing agreements and encryption. software, multimedia content) and of systems that enforce these policies within devices. DRM technologies govern the use, modification and distribution of copyrighted works (e.g. Various tools or technological protection measures (TPM) like access control technologies, can restrict the use of proprietary hardware and copyrighted works. Technology to control access to copyrighted works and prevent unauthorized copyingĭigital rights management ( DRM) is the management of legal access to digital content.

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