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Digital rights management

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Digital rights management, or DRM, is a system used to manage legal access to digital content. It uses various technological protection measures to control how people use copyrighted works. These works include software, multimedia content, and digital files. DRM can restrict the use of proprietary hardware and govern how content is modified or distributed.

DRM-free label.en
DRM-free label.en

By using these tools, copyright holders aim to protect their intellectual property. They argue that DRM acts much like a physical lock protects personal property from theft. This helps them maintain artistic control and support specific business models, such as digital rentals.

The mechanism of DRM often relies on encryption and licensing agreements. Encryption is a process that scrambles digital data so it cannot be read without a specific key. One major example is the Content Scramble System, known as CSS, used by the DVD Forum. To play a DVD, manufacturers must license this technology and build it into their players. This allows the device to decrypt the content while keeping the encryption intact during playback.

Other modern examples of these technologies include ADEPT, FairPlay, and the Advanced Access Content System (AACS).

DRM has evolved through several distinct stages and types of implementation. Early methods were quite simple, such as game manuals that required players to look up specific pages to continue. In the 1980s, the Software Service System (SSS) used specialized hardware to control decryption and manage payments. Later, the industry moved toward more complex software-based systems. Some systems, like Windows Media DRM, use a specific rights management language. This language tells the device exactly what the user is allowed to do with a file. Some versions even allow for regional lockouts or music subscriptions that expire.

The history of DRM is closely tied to the rise of the internet in the 1990s. As digital media became popular, the ability to duplicate files without losing quality increased. This led to digital piracy, which caused CD sales to drop significantly. In response, many countries passed strict laws. The United States passed the Digital Millennium Copyright Act (DMCA) in 1998. The European Union enacted the Information Society Directive to provide similar protections. In 2006, France implemented the DADVSI law to follow these European rules. These legal frameworks made it a crime to circumvent DRM or create tools to bypass it.

DRM is used across many different industries with significant scale. The entertainment industry, including audio and video publishers, uses it frequently. Online stores like OverDrive also use these technologies to manage digital books. However, the use of DRM has expanded into physical hardware products as well. Companies have applied DRM to Keurig coffeemakers, Philips light bulbs, and mobile device chargers. Even John Deere uses DRM in its tractors. This has caused issues for farmers who find it difficult to perform their own repairs.

Despite its widespread use, DRM remains highly controversial due to several factors. One major concern is that it can restrict legal activities, such as fair use or making backup copies. It can also prevent people from lending library materials or accessing works in the public domain. There is also a risk that digital works could become permanently inaccessible. This happens if a DRM scheme changes or if a required service is discontinued. For example, in 2007, Major League Baseball videos became unplayable because of a server change.

DRM protest Boston DefectiveByDesign
DRM protest Boston DefectiveByDesign

Some users even report that DRM causes technical inconveniences or security vulnerabilities.

DRM connects to broader debates about innovation, competition, and consumer rights. Critics suggest that these digital locks might stifle new ideas and competition in the market. There is also a lack of clear evidence regarding how effective DRM actually is at preventing copyright infringement. Some companies have even moved away from the technology due to these complications. In 2007, EMI stopped putting DRM on audio CDs because the costs did not match the results. Apple also made a significant change by removing DRM from iTunes music around 2009. These shifts show how the balance between protection and usability is constantly changing.

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File:DRM protest Boston DefectiveByDesign.jpg
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