The first copy protection was for cassette tapes and consisted of a loader at the beginning of the tape, which read a specially formatted section which followed.Please help improve it or discuss these issues on the talk page.Learn how and when to remove these template messages ).Please improve it by verifying the claims made and adding inline citations.
Statements consisting only of original research should be removed. November 2011 ) ( Learn how and when to remove this template message ). Please help to improve this article by introducing more precise citations. May 2009 ) ( Learn how and when to remove this template message ). Making copy protection effective while protecting consumer rights is still an ongoing problem with media publication. A more appropriate term may be technological protection measures (TPMs), 3 which is often defined as the use of technological tools in order to restrict the use or access to a work. Software Copy Protection Products Free Copies IncreaseSome even argue that free copies increase profit; people who receive a free copy of a music CD may then go and buy more of that bands music, which they would not have done otherwise. DRM and license managers sometimes fail, are inconvenient to use, and may not afford the user all of the legal use of the product they have purchased. Software usage models range from node locking to floating licenses (where a fixed number licenses can be concurrently used across an enterprise), grid computing (where multiple computers function as one unit and so use a common license) and electronic licensing (where features can be purchased and activated online). The term license management refers to broad platforms which enable the specification, enforcement and tracking of software licenses. To safeguard copy protection and license management technologies themselves against tampering and hacking, software anti-tamper methods are used. That has some technical influence over some of their characteristics. As an example, an activated Microsoft product, contains a Direct License which is locked to the PC where the product is installed. All types of media require a playera CD player, DVD player, videotape player, computer or video game console which must be able to read the media in order to display it to a human. Logically, a player could be built that reads the media and then writes an exact copy of what was read to the same type of media. In practice, almost-perfect copies can typically be made by tapping into the analog output of a player (e.g. Copying text-based content in this way is more tedious, but the same principle applies: if it can be printed or displayed, it can also be scanned and OCRed. With basic software and some patience, these techniques can be applied by a typical computer-literate user. Software Copy Protection Products Professional Operations InvolvedMedia publishers understand this; copy protection is not intended to stop professional operations involved in the unauthorized mass duplication of media, but rather to stop casual copying. They can be encrypted in a fashion which is unique for each users computer, and the decryption system can be made tamper-resistant. These were (and are) programmers who defeated copy protection on software as a hobby, add their alias to the title screen, and then distribute the cracked product to the network of warez BBSes or Internet sites that specialized in distributing unauthorized copies of software. Software prices were comparable with audio cassette prices. To make digital copying more difficult, many programs used non-standard loading methods (loaders incompatible with standard BASIC loaders, or loaders that used different transfer speed). So have those who used TRS-DOS, and I understand that MS-DOS has copy protection features. Apple and Commodore 64 computers were extremely varied and creative because most of the floppy disk reading and writing was controlled by software (or firmware), not by hardware.
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