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In optical disc manufacturing, replication is the process of producing discs via methods that do not involve "burning" blank CD, DVD or other discs; the latter is known as duplication. The replication of optical discs involves: the creation of a glass master from a client original master. the creation of a nickel stamper from that glass master.
Replication differs from duplication (i.e. burning used for CD-Rs and CD-RWs) as the pits and lands of a replicated CD are moulded into a CD blank, rather than being burn marks in a dye layer (in CD-Rs) or areas with changed physical characteristics (in CD-RWs).
CD-Cops Requires the user to enter CD-code (or reads embedded CD-code) that describes geometry of CD to correctly locate data on the disc. SafeDisc (versions 1–5) Adds unique digital signature at the time of manufacturing which is designed to be difficult to copy or transfer so that software is able to detect copied media. SafeCast
CD/DVD copy protection is a blanket term for various methods of copy protection for CDs and DVDs. Such methods include DRM, CD-checks, Dummy Files, illegal tables of contents, over-sizing or over-burning the CD, physical errors and bad sectors. Many protection schemes rely on breaking compliance with CD and DVD standards, leading to playback ...
This list includes both CD, DVD and Blu-ray recordable and rewritable media manufacturers (like Ritek), and disc replicators (companies that replicate discs with pre-recorded content, like Sony DADC).
The term CD publishing is believed to have been coined by the Rimage Corporation as part of a marketing program which referred to CD-R discs as "digital paper." Automated disc production and printing systems, such as those made by Rimage, can be shared on a computer network much like an office printer to facilitate the creation of unique discs.
Those 74 minutes come from the maximum playtime that the Red Book (audio CD standard) specifies for a digital audio CD (CD-DA); although now, most recordable CDs can hold 80 minutes worth of data. The DVD and Blu-ray discs hold a higher capacity of data, so reading or writing those discs in the same 74-minute time-frame requires a higher data ...
SafeDisc v3 uses a key to encrypt the main executable (EXE or DLL) and creates a corresponding digital signature which is added to the CD-ROM/DVD-ROM when they are replicated. The size of the digital signature varies from 3 to 20 MB depending how good the encryption must be. The authentication process takes about 10 to 20 seconds.