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

, 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 valuable goods, or taking hostages. Those who conduct acts of piracy are call ...

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

Blu-ray Disc Blu-ray (Blu-ray Disc or BD) is a Digital media, digital optical disc data storage format designed to supersede the DVD format. It was invented and developed in 2005 and released worldwide on June 20, 2006, capable of storing several hours of ...

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 is a Japanese multinational electronics manufacturer, headquartered in Kadoma, Osaka, Kadoma, Japan. It was founded in 1918 as in Fukushima-ku, Osaka, Fukushima by Kōnosuke Matsushita. The company was incorporated in 1935 and renamed and c ...

Philips Koninklijke Philips N.V. (), simply branded Philips, is a Dutch multinational health technology company that was founded in Eindhoven in 1891. Since 1997, its world headquarters have been situated in Amsterdam, though the Benelux headquarter ...

Sony is a Japanese multinational conglomerate (company), conglomerate headquartered at Sony City in Minato, Tokyo, Japan. The Sony Group encompasses various businesses, including Sony Corporation (electronics), Sony Semiconductor Solutions (i ...

. ''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, the mini-major Amazon MGM Studios, as well as the video streaming services Netflix and Amazon Prime Video. F ...

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

The Internet Archive The Internet Archive is an American 501(c)(3) organization, non-profit organization founded in 1996 by Brewster Kahle that runs a digital library website, archive.org. It provides free access to collections of digitized media including web ...

) * 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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