We previously talked about what DRM technology is and here we would like to discuss the different DRM technologies developed and survived over the years in movies with you.
As we already know, Digital Rights Management (DRM) refers to a broad category of access control technologies aimed at restricting the use and copy of digital content on a wide range of devices. In the past decade, many DRM technologies have been developed within the industry, but very few have survived till today. Now let’s get into the most popular commercial DRM schemes in film as below.
In the early days of DVD technologies, a DRM system called Content Scrambling System (CSS) was developed by the DVD Forum on film DVDs. It uses a simple encryption scheme designed to prevent byte-for-byte copying of a MPEG (digital video) stream. More recently, due to the rapid adoption of new media technologies such as HD-DVD and Blu-ray, new DRM systems today concern mostly with these platforms:
Windows Media DRM on WMV/WMA Media
Most WMV, WMA files are unprotected and can be used for most media players and Windows Phone or tablets. WMV is also the best suitable steaming video format for webpage. But if you got the WMV/WMA files from Windows Media center, you are limited to use these files by Windows Media DRM.
Tips: To unlock DRM from WMV or WMA media files, you are recommended to use Aimersoft DRM Media Converter for Windows.
Apple’s FairPlay DRM on iTunes Movies/TV shows
FairPlay is a DRM scheme from Apple which was initially used for its music store to protect audio files, but was soon also adopted in ePub files designed for Apple’s iBooks. The DRM on iTunes music files was removed by Apple since 2009 but the FairPlay is still used to encrypt its movies and TV shows in iTunes store. Due to which, users are only allowed to watch iTunes video on certain Apple devices only.