Widevine Technologies was purchased by Google in 2010. Widevine is a digital rights management (DRM) technology provider for the Google Chrome web browser, Android MediaDRM, Android TV, and other consumer electronics devices. Besides, Widevine Modular also supports a broad range of consumer devices, such as Android (4.3+), TVs, game consoles, iOS devices, etc. While Widevine Modular supports multiple content formats, including live streaming, MPEG-DASH and Common Encryption (CENC). Actually, the Widevine Modular is the successor of Widevine Classic, which is joined the Google DRM scheme used for the on-demand and downloaded content. It has two wonderful versions, called Widevine Classic and Widevine Modular. With the purpose of boycotting the pirate and protecting the benefit of content owners, Widevine developed by Google is an encryption system with DRM. Therefore you can freely enjoy all songs bought from iTunes store. Fortunately, after 2009, Apple has disabled FairPlay DRM protection. These DRM-ed songs could only be listened on iTunes and Apple devices. Previously, all songs purchased from iTunes store between 20 are also protected by Apple FairPlay DRM. With FairPlay DRM protection, media files purchased or rented are not allowed to play on other non-Apple's products except iPhone, iPod, iPad, Apple TV and etc. This FairPlay DRM technology features with the use of AES algorithm in combination with MD5 hashes.

Different from other DRM schemes in Microsoft, it has the independent platform that means it can be installed to any other portable devices, like connected TV devices, Windows operating systems, Windows mobile and Xbox.Īpple has adopted FairPlay DRM protection on its iTunes media files including movies, TV shows, eBooks, audiobooks, some music files, etc. Microsoft PlayReady DRM is the widest deployed DRM in the world.

It could protect the Window media files and prevent the unauthorized users assessing to protected digital media. Microsoft PlayReady DRM is a digital file copy prevention technology including encryption, output prevention and digital rights management upon Window media files.

Here we would like to mainly talk about types of DRM technologies that are commonly adopted and widely seen in the market. There are various types of DRM technologies for all the abovementioned media files.

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