Software blacklist
Encyclopedia
Software blacklisting is a tool used by manufacturers of software and music on CD and DVD
to prevent copying.
Essentially the software on the disc will audit the user's computer for certain types of virtual CD
and CD authoring software, or for debugging software
used by warez groups
to create patches
(known as cracks
) that bypass copy protection
schemes. If blacklisted software is found then certain actions are taken by the software on the game or music disc. Examples would be allowing the copying of the game to take place, but crashing the copied game when attempting to start it; allowing copies of games that will malfunction in subtle ways and simply disallowing the game to be run while this software exists.
This software blacklisting can be seen as a countermeasure to virtual CD/CD burning software used to bypass copy protection
schemes such as SecuROM
, SafeDisc
and LaserLock
.
In order to copy the CD, the user may have to copy the disc on another computer (real or virtual), uninstall the blacklisted software or wait for an update of the blacklisted software, which will have a countermeasure to the game or music disc's own blacklisting countermeasure.
There are also some programs that can hide software from blacklists, such as Anti-blaxx.
Examples of commonly blacklisted software are Daemon Tools
, Nero
and Alcohol 120%.
DVD
A DVD is an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than Compact Discs while having the same dimensions....
to prevent copying.
Essentially the software on the disc will audit the user's computer for certain types of virtual CD
Virtual drive
A virtual drive in computing is a device that to the operating system appears to be an ordinary physical disk drive, with disc images substituted for disc reading hardware through the use of software called a disk emulator...
and CD authoring software, or for debugging software
Debugger
A debugger or debugging tool is a computer program that is used to test and debug other programs . The code to be examined might alternatively be running on an instruction set simulator , a technique that allows great power in its ability to halt when specific conditions are encountered but which...
used by warez groups
Warez
Warez refers primarily to copyrighted works distributed without fees or royalties, and may be traded, in general violation of copyright law. The term generally refers to unauthorized releases by organized groups, as opposed to file sharing between friends or large groups of people with similar...
to create patches
Patch (computing)
A patch is a piece of software designed to fix problems with, or update a computer program or its supporting data. This includes fixing security vulnerabilities and other bugs, and improving the usability or performance...
(known as cracks
Software cracking
Software cracking is the modification of software to remove or disable features which are considered undesirable by the person cracking the software, usually related to protection methods: copy protection, trial/demo version, serial number, hardware key, date checks, CD check or software annoyances...
) that bypass copy protection
Copy protection
Copy protection, also known as content protection, copy obstruction, copy prevention and copy restriction, refer to techniques used for preventing the reproduction of software, films, music, and other media, usually for copyright reasons.- Terminology :Media corporations have always used the term...
schemes. If blacklisted software is found then certain actions are taken by the software on the game or music disc. Examples would be allowing the copying of the game to take place, but crashing the copied game when attempting to start it; allowing copies of games that will malfunction in subtle ways and simply disallowing the game to be run while this software exists.
This software blacklisting can be seen as a countermeasure to virtual CD/CD burning software used to bypass copy protection
Copy protection
Copy protection, also known as content protection, copy obstruction, copy prevention and copy restriction, refer to techniques used for preventing the reproduction of software, films, music, and other media, usually for copyright reasons.- Terminology :Media corporations have always used the term...
schemes such as SecuROM
SecuROM
SecuROM is a CD/DVD copy protection and digital rights management product developed by Sony DADC. SecuROM aims to resist home media duplication devices, professional duplicators, and attempts at reverse engineering software. It is most often used for commercial computer games running under the...
, SafeDisc
SafeDisc
SafeDisc is a CD/DVD copy protection and digital rights management program for Windows applications and games. Created by Macrovision Corporation, it aims to prevent the copying of discs for casual or commercial use....
and LaserLock
LaserLock
LaserLock is a CD-ROM copy restriction technique. It works by including a hidden directory on the CD which contains corrupted data. When the disk is copied, the read device encounters errors due to the hidden directory....
.
In order to copy the CD, the user may have to copy the disc on another computer (real or virtual), uninstall the blacklisted software or wait for an update of the blacklisted software, which will have a countermeasure to the game or music disc's own blacklisting countermeasure.
There are also some programs that can hide software from blacklists, such as Anti-blaxx.
Examples of commonly blacklisted software are Daemon Tools
Daemon Tools
Daemon Tools is a disk image emulator and optical disc authoring program for Microsoft Windows. Daemon Tools was originally a furtherance in the development of another program, Generic SafeDisc emulator, and incorporated all of its features. The program claims to be able to defeat most copy...
, Nero
Nero
Nero , was Roman Emperor from 54 to 68, and the last in the Julio-Claudian dynasty. Nero was adopted by his great-uncle Claudius to become his heir and successor, and succeeded to the throne in 54 following Claudius' death....
and Alcohol 120%.