copy protection

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copy protection

[′käp·ē prə‚tek·shən]
(computer science)

copy protection

A class of methods for preventing incompetent pirates from stealing software and legitimate customers from using it. Considered silly.

copy protection

The prevention of unauthorized copying of software or media. From the 1950s to the 1980s, software copy protection was not an issue. Vendor support for mainframes and minicomputers had always been vital, and only legitimate licensees could receive it. As desktop computer software became more complex, technical support became just as important, but could be obtained from many sources, not just the vendor of the product.

Software Copy Protection
In the early days of floppy disk-only computers, some software copy protection methods were used, but "copy buster" programs were quickly developed to break them. When hard disks became the norm, software copy protection was abolished. In order to defragment a hard disk, files had to be easily copied from one part of the disk to another.

The Internet has provided some assistance with software copy protection. In order to receive automatic patches and updates, the software is registered with the vendor at time of installation, and the same update will only be sent once to the same account. Other methods are used to ensure that software is always running in the same machine (see Windows Product Activation). See hardware key for an unpopular, but effective, method.

Media Copy Protection
Copy protection for music and movies is a constant dilemma for the publishing and broadcasting industries. Every recipient that receives a digital file can make a perfect copy of it unless the content is copy protected (see DRM). See DMCA, CSS, BD+ and peer-to-peer network.
References in periodicals archive ?
Whatever you write to that disk would then be locked to those fundamental copy-protection features," he explained.
Conexant's new CX25872/3 and CX25874/5 products build upon the company's proven video encoder solutions to combine adaptive flicker-filtering, HDTV output capability and true international support including the latest copy-protection features for digital content.
Under the agreement, TTR and Macrovision are jointly responsible for completing the development of the audio copy-protection product and preparing it for commercial launch while Macrovision is responsible for sales, marketing, installation, technical support and replicator liaison.
Nasdaq: TTRE), a leading developer of digital anti-piracy technologies, today announced that a major record label has completed an initial beta test of its SafeAudio(TM) Toolkit for CD-audio copy-protection.
01) copy protection schemes to protect the intellectual property of content developers by restricting copy reproduction, detecting copy-protection on its input and then re-applying the copy protection again on its output.