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Digital rights management

technology Maturity 11-13 Next article →

Digital rights management, or DRM, is a way to control how people use digital things.

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

This technology manages legal access to files like music, movies, and software. As digital media grew, owners became worried about how easy it was to copy things. Unlike old analog tapes, digital files can be copied many times without losing quality. This makes it very easy to share files without permission. DRM acts like a digital lock to protect these works.

One common way DRM works is through encryption. Encryption is a way to scramble information so others cannot read it. Only someone with a special key can unscramble the data to use it. Some systems use licensing agreements to set rules for the content. For example, the Content Scramble System, or CSS, is used on many DVDs. Manufacturers must use this technology to make DVD players that can unscramble the movies. This keeps the digital locks working while you watch your film.

DRM has a long history that began with early computer tools. In 1983, a Japanese engineer named Ryuichi Moriya created the Software Service System. This was the first major example of DRM technology. It used special hardware and encryption to manage payments and access. Later, in 1998, the United States passed the Digital Millennium Copyright Act, known as the DMCA. This law made it a crime to break digital locks or make tools to bypass them. These laws helped shape how the internet and digital media grew.

Many different industries use DRM in many unexpected ways. Some companies use it for hardware like Keurig coffeemakers or Philips light bulbs. Even John Deere tractors use these tools, which can make it hard for farmers to fix them. In the music world, companies like Sony BMG once put DRM on CDs without telling users. This caused big problems and led to many lawsuits. Some stores, like OverDrive, use DRM to manage digital books. However, Apple decided to remove DRM from its iTunes music around 2009.

Even though DRM is meant to protect owners, it is very controversial. Some people argue that DRM stops them from using things they bought legally. It can make it hard to make backup copies or borrow books from a library. If a company changes its system or stops a service, your files might become unplayable forever. This happened in 2007 when some baseball videos could no longer be watched.

DRM protest Boston DefectiveByDesign
DRM protest Boston DefectiveByDesign

Because of these issues, many people continue to protest how these digital locks work.

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