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Burst Cutting Area
The Burst Cutting Area on an 80 mm DVD A resync byte and parts of nearby zero bytes on a disc's BCA In computing, the burst cutting area (BCA) or narrow burst cutting area (NBCA) is the circular area near the center of a DVD, HD DVD or Blu-ray Disc, where a barcode can be written for additional information such as ID codes, manufacturing information, and serial numbers. The BCA can be written during mastering and will be common for all discs from that master or, more usually, will be written using a YAG laser to "cut" the barcode into the aluminum reflective layer of the finished disc, potentially adding a unique barcode to each manufactured disc. If a BCA mark is present, it is visible to the naked eye between a radius 22.3±0.4 mm and 23.5±0.5 mm. It should not be confused with the IFPI barcode that is present on all pre-recorded discs. The data stored in the BCA can be from 12 bytes to 188 bytes in steps of 16 bytes. The BCA can be read using the same laser fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BCA On 80mm DVD Disc
BCA may refer to: Commerce * Bangladesh Caterers Association UK, the umbrella organisation of British-Bangladeshi restaurants *Bank Central Asia, a private bank in Indonesia *Boeing Commercial Airplanes, the commercial aircraft division of The Boeing Company *Book Club Associates, a defunct mail-order and online book seller *British Car Auctions, former name of the used vehicle marketplace Constellation Automotive Group *Broadcasting Company of America, former American Telephone & Telegraph Company subsidiary *Business Council of Australia, an industry association of Australian chief executives *Civilian Board of Contract Appeals, a United States government agency *Model Business Corporation Act, a Model Act promulgated by the Corporate Laws Committee of the American Bar Association * Broadcasting Corporation of Abia State, a state government-run radio station of Abia State Education *Bachelor of Computer Application, an undergraduate academic degree *Bergen County Academies, a ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DVD Recordable
DVD recordable and DVD rewritable are a collection of optical disc formats that can be written to by a DVD recorder and by computers using a DVD writer. The "recordable" discs are write-once read-many (WORM) media, where as "rewritable" discs are able to be erased and rewritten. Data is written (" burned") to the disc by a laser, rather than the data being "pressed" onto the disc during manufacture, like a DVD-ROM. Pressing is used in mass production, primarily for the distribution of home video. DVD±R (also DVD+/-R, or "DVD plus/dash R") is a shorthand term for both DVD+R and DVD-R formats. Likewise, the term DVD±RW refers to both rewritable disc types, the DVD+RW and the DVD-RW. DVD±R/W (also written as, DVD±R/RW, DVD±R/±RW, DVD+/-RW, DVD±R(W) and other arbitrary ways) handles all common writable disc types, but not DVD-RAM. A drive that supports writing to all these disc types including DVD-RAM (but not necessarily including cartridges or 8cm diameter discs) is referr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Storage Technology Association
The Optical Storage Technology Association (OSTA) was an international trade association formed to promote the use of recordable optical data storage technologies and products. It was responsible for the creation and maintenance of the Universal Disk Format (UDF) file system specification (derived from ISO/IEC 13346 and ECMA-167), which was notably adopted for DVD-Video. It was incorporated in California in 1992 and dissolved in 2018. In the autumn of 2007, OSTA spearheaded a campaign to encourage families and photographers to back up their digital photographs on compact discs. The web site of the association provides the full digital specification books of each revision of the Universal Disc Format (UDF) starting at 1.02, as well as other whitepapers and information pages related to optical data storage. Besides the UDF specifications, differences between the revisions of the specifications can be obtained. A sub-committee of the group was the "Commercial Optical Storage Appli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blu-ray Disc Association
Blu-ray Disc Association (BDA) is the industry consortium that develops and licenses Blu-ray technology and is responsible for establishing format standards and promoting business opportunities for Blu-ray Disc. The BDA is divided into three levels of membership: the board of directors, contributors, and general members. The "Blu-ray Disc founder group" was started on 20 May 2002 by nine electronic companies: Panasonic, Pioneer, Philips, Thomson, LG Electronics, Hitachi, Sharp, Samsung Electronics and Sony. In order to enable more companies to participate, it announced in May 2004 that it would form the Blu-ray Disc Association, which was inaugurated on 4 October 2004. Members Board The board members as of November 2016 are: * Sony * Xperi * DTS * Hitachi-LG Data Storage * Intel Corporation * Koninklijke Philips * LG Electronics * Lionsgate * Mitsubishi Electric * Oracle Corporation * Panasonic * Pioneer Corporation * Samsung Electronics * Sharp Corporation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DVD Forum
The DVD Forum (initially DVD Consortium) was an industry consortium for DVD specifications from 1995 to 2025. History The founding companies were Hitachi, Panasonic, Mitsubishi, Pioneer, Philips, Sony, Thomson, Warner Bros, Toshiba, JVC, NBCUniversal and The Walt Disney Company. The DVD Forum was created to facilitate the exchange of information and ideas about the DVD format, another evolution of the LaserDisc format, and to enable it to grow through technical improvement and innovation. The organization hoped to promote worldwide acceptance of DVD for entertainment, consumer electronics and information technology applications. Membership in the DVD Forum was open to any company or organization involved in DVD research, development, or manufacturing; software firms and other DVD users interested in developing the format were also encouraged to join. Forum members could support other formats in addition to DVD. The DVD Forum was responsible for the official DVD format sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecma International
Ecma International () is a Nonprofit organization, nonprofit standards organization for information and communication systems. It acquired its current name in 1994, when the European Computer Manufacturers Association (ECMA) changed its name to reflect the organization's global reach and activities. As a consequence, the name is acronym#Pseudo-acronyms and orphan initialisms, no longer considered an acronym and no longer uses full capitalization. The organization was founded in 1961 to standardize computer systems in Europe. Membership is open to large and small companies worldwide that produce, market, or develop computer or communication systems, and have interest and experience in the areas addressed by the group's technical bodies. It is located in Geneva. Aims Ecma aims to develop Standardization, standards and Technical_report, technical reports to facilitate and standardize the use of information communication technology and consumer electronics; encourage the correct u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Media Identification Code
The Media Identification Code (MID) is used on DVD-R, DVD+R and DVD-RAM discs to identify the manufacturer and to assist the DVD burner to select the best write strategy for the inserted media. The technology is inherited from the ATIP code used on CD-R discs. If the DVD burner recognizes the discs it means that the disc has been tested by the drive manufacturer to achieve the best possible burn using an optimal write strategy. The strategy is stored in the firmware. Writing to a disc with no MID code or a code that is not recognized can result in inaccurate recording and data read-back problems. Displaying the MID The following programs can be used to display the contents of the MID With Windows * instalDVDInfoProby Nic Wilson (full 14-day trial available without any adverts) * instalDVDIdentifierby Kris Schoofs (freeware) With Linux Ubuntu and other Linux systems have dvd+rw-tools installed by default, which provides a command to display the media data: $ dvd+rw-m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Position Measurement
Data position measurement (DPM) is a CD and DVD copy protection mechanism that operates by measuring the physical location of data on an optical disc. Stamped CDs are perfect clones and always have the data at the expected location, while a burned copy would exhibit physical differences. DPM detects these differences to identify user-made copies. DPM was first used publicly in 1996 by Link Data Security's CD-Cops. It was used in volume on Lademans Leksikon published by Egmont in November 1996. RMPS DPM can be observed and subsequently encoded into a recordable media physical signature (RMPS). In concert with emulation software RMPS can reproduce the effects of DPM thereby appearing as an original disc and fooling the protection mechanism. This technique was pioneered by the software Alcohol 120%, for which it created the .mds file format. See also * ROM Mark * Burst cutting area The Burst Cutting Area on an 80 mm DVD A resync byte and parts of nearby zero bytes on a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ROM Mark
In computing, ROM Mark or BD-ROM Mark is a serialization technology designed to guard against mass production piracy or the mass duplication and sale of unauthorized copies of pre-recorded Blu-ray Discs. 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 See also * Burst Cutting Area * Cinavia * Data position measurement * Book type Notes References * Panasonic, Philips, Sony. ''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.Digital Content Protection Status Report. ''IRMA Annual Recording Media Forum''. (PowerPoint file, via The Internet Archive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Book Type
The book type is a field of four bits at the start of every DVD (in the physical format information section of the control data block) that indicates what the physical format of the disc is. Many devices will use this field to determine how the disc should be treated. One common cause of compatibility problems is the failure of a device to recognize the book type of the disc, most likely because the device had been manufactured before that particular book type was defined; for example, most DVD playback devices made before mid-2004 cannot recognize the relatively new DVD+R DL Book Type. For DVD+R, DVD+RW, and DVD+R DL discs, it is possible to change the book type field value to the value associated with the DVD-ROM format (or in some rare and unorthodox cases, even the value associated with the DVD-R format—though only DVD+R can be changed to this) in order to fool older devices, which is a trick known as ''bitsetting''. These are the possible values of the Book Type Field ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blu-ray
Blu-ray (Blu-ray Disc or BD) is a 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 high-definition video ( HDTV 720p and 1080p). The main application of Blu-ray is as a medium for video material such as feature films and for the physical distribution of video games for the PlayStation 3, PlayStation 4, PlayStation 5, Xbox One, and Xbox Series X. The name refers to the blue laser used to read the disc, which allows information to be stored at a greater density than is possible with the longer-wavelength red laser used for DVDs, resulting in an increased capacity. The polycarbonate disc is in diameter and thick, the same size as DVDs and CDs. Conventional (or "pre-BDXL") Blu-ray discs contain 25 GB per layer, with dual-layer discs (50GB) being the industry standard for feature-length video discs. Triple-layer discs (10 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homebrew (video Games)
Homebrew, when applied to video games, refers to software produced by hobbyists for proprietary video game consoles which are not intended to be user-programmable. The official documentation is often only available to licensed developers, and these systems may use storage formats that make distribution difficult, such as ROM cartridges or encrypted CD-ROMs. Many consoles have hardware restrictions to prevent unauthorized development. Development can use unofficial, community maintained toolchains or official development kits such as Net Yaroze, Linux for PlayStation 2, or Microsoft XNA. Targets for homebrew games are typically those which are no longer commercially relevant or produced, and with simpler graphics and/or computational abilities, such as the Atari 2600, Nintendo Entertainment System, Wii, Nintendo 3DS, Wii U, Sega Genesis, Genesis, Dreamcast, Game Boy Advance, PlayStation (console), PlayStation, and PlayStation 2. Several groups within the homebrew community have c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
