CD and DVD copy protection

computer file containing the contents and structure of a disk volume

method or effort designed to prevent the reproduction of software, films, music, and other media, usually for copyright reasons

SecuROM is a CD/DVD copy protection and digital rights management (DRM) system developed by Sony DADC and introduced in 1998. It aims to prevent unauthorised copying and reverse engineering of software, primarily commercial computer games running on Windows. The method of disc protection in later versions is data position measurement, which may be used in conjunction with online activation DRM. SecuROM gained prominence in the late 2000s but generated controversy because of its requirement for frequent online authentication and strict key activation limits. A 2008 class-action lawsuit was file

DVD video copy-protection system

right|thumb|A fragment of the DeCSS code, which can be used by a computer to circumvent a DVD's copy protection.

type of digital rights management

standard for content distribution and digital rights management

SafeDisc is a copy protection program for Microsoft Windows applications and games distributed on optical disc. Created by Macrovision Corporation, it was aimed to hinder disc duplication. The program was first introduced in 1998 and was discontinued on March 31, 2009.

StarForce Technologies (previously known as Protection Technology) is a Russian software developer with headquarters in Moscow. Its main activities are information security, protection against unauthorized copying, modification, and analysis (decompilation).

physical media copy-protection system

generic name of a copy prevention system

libdvdcss (or libdvdcss2 in some repositories) is a free and open-source software library for accessing DVDs encrypted with Content Scramble System (CSS). libdvdcss is part of the VideoLAN project and is used by VLC media player and other media player software, such as Ogle, xine-based players, and MPlayer.

method used to identify optical discs

DVD copy-protection system

attempts by MPAA and AACS-LA to prevent the distribution of a cryptographic key

BD+ is a component of the Blu-ray digital rights management system designed to prevent unauthorized copying or playback of Blu-ray discs.

copy protection rootkit by Sony BMG

Sony BMG's implementation of copy protection measures

Copy protection system in VHS and DVDs