|
List Of Compact Disc And DVD Copy Protection Schemes
This is a list of notable copy protection schemes for CD and DVD. For other medias, see List of Copy Protection Schemes. Commercial CD protection schemes ; 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 : The encryption key will expire after pre-determined date so the media can be used only temporarily. Also used to implement trial editions of programs. ; SecuROM : Limits the number of PCs activated at the same time from the same key. ; StarForce : Asks for Serial ID at install or startup to verify the license. ; TAGES : Verifies authentic copy by checking existence of "twin sectors" which are sectors with same logical address but different data. However, twin sectors may be hard to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copy Protection
Copy protection, also known as content protection, copy prevention and copy restriction, describes measures to enforce copyright by preventing the reproduction of software, films, music, and other media. Copy protection is most commonly found on videotapes, DVDs, Blu-ray discs, HD-DVDs, computer software discs, video game discs and cartridges, audio CDs and some VCDs. Some methods of copy protection have also led to criticism because it caused inconvenience for paying consumers or secretly installed additional or unwanted software to detect copying activities on the consumer's computer. Making copy protection effective while protecting consumer rights remains a problem with media publication. Terminology Media corporations have always used the term copy protection, but critics argue that the term tends to sway the public into identifying with the publishers, who favor restriction technologies, rather than with the users. Copy prevention and copy control may be more neutral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Book (audio CD Standard)
Compact Disc Digital Audio (CDDA or CD-DA), also known as Digital Audio Compact Disc or simply as Audio CD, is the standard format for audio compact discs. The standard is defined in the ''Red Book'', one of a series of Rainbow Books (named for their binding colors) that contain the technical specifications for all CD formats. The first commercially available audio CD player, the Sony CDP-101, was released October 1982 in Japan. The format gained worldwide acceptance in 1983–84, selling more than a million CD players in those two years, to play 22.5 million discs. Beginning in the 2000s, CDs were increasingly being replaced by other forms of digital storage and distribution, with the result that by 2010 the number of audio CDs being sold in the U.S. had dropped about 50% from their peak; however, they remained one of the primary distribution methods for the music industry. In the 2010s, revenues from digital music services, such as iTunes, Spotify, and YouTube, matched ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Checksum
A checksum is a small-sized block of data derived from another block of digital data for the purpose of detecting errors that may have been introduced during its transmission or storage. By themselves, checksums are often used to verify data integrity but are not relied upon to verify data authenticity. The procedure which generates this checksum is called a checksum function or checksum algorithm. Depending on its design goals, a good checksum algorithm usually outputs a significantly different value, even for small changes made to the input. This is especially true of cryptographic hash functions, which may be used to detect many data corruption errors and verify overall data integrity; if the computed checksum for the current data input matches the stored value of a previously computed checksum, there is a very high probability the data has not been accidentally altered or corrupted. Checksum functions are related to hash functions, fingerprints, randomization functions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PlayStation
is a video gaming brand that consists of five home video game consoles, two handhelds, a media center, and a smartphone, as well as an online service and multiple magazines. The brand is produced by Sony Interactive Entertainment, a division of Sony; the first PlayStation console was released in Japan in December 1994, and worldwide the following year. The original console in the series was the first console of any type to ship over 100 million units, doing so in under a decade. Its successor, the PlayStation 2, was released in 2000. The PlayStation 2 is the best-selling home console to date, having reached over 155 million units sold by the end of 2012. Sony's next console, the PlayStation 3, was released in 2006, selling over 87.4 million units by March 2017. Sony's next console, the PlayStation 4, was released in 2013, selling a million units within a day, becoming the fastest selling console in history. The latest console in the series, the PlayStation 5, was releas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FADE
Fade or Fading may refer to: Science and technology * Fading, a loss of signal strength at a radio receiver * Color fade, the alteration of color by light * Fade (audio engineering), a gradual change in sound volume * Brake fade, in vehicle braking systems, a reduction in stopping power after repeated use * FADE, a type of anti-piracy software Arts and entertainment Film and television * Fade (filmmaking), a cinematographic technique * ''Fade'', a 2007 film starring Devon Odessa * The Fades (TV series), ''The Fades'' (TV series), a 2011 UK supernatural drama series * Fade (Smallville), "Fade" (''Smallville''), a television episode Literature * Fade (novel), ''Fade'' (novel), a 1988 novel by Robert Cormier * ''The Fade'', a 2007 novel by Chris Wooding Music * Dynamics (music), the variation or change in volume in a piece of music Performers * Fade (band), a Japanese alternative rock band * The Fades, a British indie rock band Albums * Fade (Remove Silence album), ''Fade'' (Remov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TOC (CD)
Optical disc authoring, including DVD and Blu-ray Disc authoring, is the process of assembling source material—video, audio or other data—into the proper logical volume format to then be recorded ("burned") onto an optical disc (typically a compact disc or DVD). Process To burn an optical disc, one usually first creates an optical disc image with a full file system, of a type designed for the optical disc, in temporary storage such as a file in another file system on a disk drive. One may test the image on target devices using rewriteable media such as CD-RW, DVD±RW and BD-RE. Then, one copies the image to the disc (usually write-once media for hard distribution). Most optical disc authoring utilities create a disc image and copy it to the disc in one bundled operation, so that end-users often do not know the distinction between creating and burning. However, it is useful to know because creating the disc image is a time-consuming process, while copying the imag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GD-ROM
GD-ROM (an abbreviation of "Gigabyte Disc Read-Only Memory") is a proprietary optical disc format originally used for the Dreamcast video game console, as well as its arcade counterpart, the Sega NAOMI and select Triforce arcade board titles. It was developed by Yamaha to curb piracy common to standard CDs and to offer increased storage capacity without the expense of the fledgling DVD-ROM. It is similar to the standard CD-ROM except that the pits on the disc are packed more closely together, resulting in a higher storage capacity of 1 gigabyte, a 42% increase over a conventional CD's capacity of 700 megabytes. The Dreamcast ended up being the only sixth-generation console with a disc based on CD technology rather than DVD technology; even the Nintendo GameCube's smaller 8 cm discs held 50% more data due to being based on DVD technology. In addition, GD-ROM proved to be an ineffective anti-piracy measure when it was discovered the Dreamcast's forgotten MIL-CD functionality could ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dreamcast
The is a home video game console released by Sega on November 27, 1998, in Japan; September 9, 1999, in North America; and October 14, 1999, in Europe. It was the first sixth-generation video game console, preceding Sony's PlayStation 2, Nintendo's GameCube and Microsoft's Xbox, and it was Sega's final console, ending the company's eighteen years in the console market. The Dreamcast was developed by an internal Sega team led by Hideki Sato. In contrast to the expensive hardware of the unsuccessful Saturn, the Dreamcast was designed to reduce costs with "off-the-shelf" components, including a Hitachi SH-4 CPU and an NEC PowerVR2 GPU. Sega used the GD-ROM media format to avoid the expenses of DVD-ROM technology and a custom version of the Windows CE operating system to make porting PC games easy. The Dreamcast was the first console to include a built-in modular modem for internet access and online play. Though released in Japan to a subdued reception, the Dreamcast ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MediaMax CD3
MediaMax CD-3 is a software package created by SunnComm which was sold as a form of copy protection for compact discs. It was used by the record label RCA Records/BMG, and targets both Microsoft Windows and Mac OS X. Elected officials and computer security experts regard the software as a form of malware since its purpose is to intercept and inhibit normal computer operation without the user's authorization. MediaMax received media attention in late 2005 in fallout from the Sony XCP copy protection scandal. MediaMax is a second-generation system meant to address the problems of earlier copy-preventing schemes, where many types of playback devices had difficulty reading discs in normal use. MediaMax was first used on Anthony Hamilton's '' Comin' From Where I'm From'' in the United States; the first US No. 1 CD to use it was Velvet Revolver's ''Contraband''. (The European release of the Velvet Revolver album used Macrovision CDS-200 and the Japanese is without copy protection.) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Key2Audio
key2audio is a copy restriction system for Audio CDs, developed by Sony DADC. The system gained notoriety after it was discovered that one can effectively disable the system by tracing the outer edge of a CD with a felt-tip marker. The system works by applying a bogus data track onto the disc during glass master manufacturing. Since computers are designed to read data before music, this prevents playback on a PC and thereby prevents ripping as well as ordinary listening using a computer. CD players ignore any non-audio tracks on a disc, and can therefore play the CD unimpeded - Enhanced CDs also take advantage of this factor. Currently there are two major versions of the key2Audio protection: the original key2Audio, and key2AudioXS. key2Audio key2audio products are highly compatible because the audio session is not modified. Since additional data sessions are used, the CD is not Red Book compliant and should not use the "Compact Disc" logo. As with any passive DRM technolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rootkit
A rootkit is a collection of computer software, typically malicious, designed to enable access to a computer or an area of its software that is not otherwise allowed (for example, to an unauthorized user) and often masks its existence or the existence of other software. The term ''rootkit'' is a compound of "root" (the traditional name of the privileged account on Unix-like operating systems) and the word "kit" (which refers to the software components that implement the tool). The term "rootkit" has negative connotations through its association with malware. Rootkit installation can be automated, or an attacker can install it after having obtained root or administrator access. Obtaining this access is a result of direct attack on a system, i.e. exploiting a vulnerability (such as privilege escalation) or a password (obtained by cracking or social engineering tactics like "phishing"). Once installed, it becomes possible to hide the intrusion as well as to maintain privileged acc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sony BMG Copy Protection Rootkit Scandal
A scandal erupted in 2005 regarding Sony BMG's implementation of copy protection measures on about 22 million CDs. When inserted into a computer, the CDs installed one of two pieces of software that provided a form of digital rights management (DRM) by modifying the operating system to interfere with CD copying. Neither program could easily be uninstalled, and they created vulnerabilities that were exploited by unrelated malware. One of the programs would install and "phone home" with reports on the user's private listening habits, even if the user refused its end-user license agreement (EULA), while the other was not mentioned in the EULA at all. Both programs contained code from several pieces of copylefted free software in an apparent infringement of copyright, and configured the operating system to hide the software's existence, leading to both programs being classified as rootkits. Sony BMG initially denied that the rootkits were harmful. It then released an uninstaller ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
