computing Computing is any goal-oriented activity requiring, benefiting from, or creating computing machinery. It includes the study and experimentation of algorithmic processes, and development of both hardware and software. Computing has scientific, e ...

, ROM Mark or BD-ROM Mark is a serialization technology designed to guard against mass production

piracy Piracy is an act of robbery or criminal violence by ship or boat-borne attackers upon another ship or a coastal area, typically with the goal of stealing cargo and other valuable goods. Those who conduct acts of piracy are called pirates, v ...

or the mass duplication and sale of unauthorized copies of pre-recorded

Blu-ray Disc The Blu-ray Disc (BD), often known simply as Blu-ray, is a Digital media, digital optical disc data storage format. It was invented and developed in 2005 and released on June 20, 2006 worldwide. It is designed to supersede the DVD format, and c ...

s. Only licensed BD-ROM manufacturers have access to the equipment that can make these unique ROM Marks, thus allowing authentic BD-ROM media like movies and music to be identified. The ROM Mark contains the Volume ID required to decrypt content encrypted using AACS.Digital Content Protection Status Report

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Panasonic formerly between 1935 and 2008 and the first incarnation of between 2008 and 2022, is a major Japanese multinational corporation, multinational Conglomerate (company), conglomerate corporation, headquartered in Kadoma, Osaka, Kadoma, Osaka P ...

Philips Koninklijke Philips N.V. (), commonly shortened to Philips, is a Dutch multinational conglomerate corporation that was founded in Eindhoven in 1891. Since 1997, it has been mostly headquartered in Amsterdam, though the Benelux headquarters i ...

Sony , commonly stylized as SONY, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan. As a major technology company, it operates as one of the world's largest manufacturers of consumer and professional ...

. ''3C BD-ROM Mark Specification''. * Edmonds, Robert A.; (Saratoga, CA) ; McDonnell, Kevin J.; (Pleasanton, CA) ; Meulder, Johan De; (Kessel, BE).
Method and apparatus for identifying a digital recording source
. *

MPAA The Motion Picture Association (MPA) is an American trade association representing the five major film studios of the United States, as well as the video streaming service Netflix. Founded in 1922 as the Motion Picture Producers and Distribu ...

.
Digital Content Protection Status Report
. ''IRMA Annual Recording Media Forum''. (PowerPoint file, via

The Internet Archive The Internet Archive is an American digital library with the stated mission of "universal access to all knowledge". It provides free public access to collections of digitized materials, including websites, software applications/games, music, ...

) * CDRInfo.
Blu-ray Disc Marking System Explained
. * CDRInfo.
DaTARIUS DaTABANK Reads BD-ROM Mark
. Blu-ray Disc Optical disc authoring Compact Disc and DVD copy protection {{Compu-storage-stub

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