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  2. List of Compact Disc and DVD copy protection schemes

    en.wikipedia.org/wiki/List_of_Compact_Disc_and...

    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.

  3. Compact Disc and DVD copy protection - Wikipedia

    en.wikipedia.org/wiki/Compact_Disc_and_DVD_copy...

    In late 2005, Sony BMG Music sparked the Sony CD copy protection scandal when it included a form of copy protection called Extended Copy Protection ("XCP") on discs from 52 artists. [1] Upon inserting such a disc in the CD drive of a computer running Microsoft Windows, the XCP software would be installed.

  4. Compact disc - Wikipedia

    en.wikipedia.org/wiki/Compact_disc

    [15] [16] The success of the compact disc has been credited to the cooperation between Philips and Sony, which together agreed upon and developed compatible hardware. The unified design of the compact disc allowed consumers to purchase any disc or player from any company and allowed the CD to dominate the at-home music market unchallenged. [17]

  5. Disc rot - Wikipedia

    en.wikipedia.org/wiki/Disc_rot

    DVD-D and Flexplay, disposable optical disc formats designed to become unplayable after a limited time; M-Disc, an optical disc format claimed to have a reduced rate of rot compared to conventional DVDs; Panchiko, a band who gained popularity in 2016 when a 2000 demo EP--which was notably distorted due to CD-R disc rot--was found in a charity shop.

  6. Optical disc packaging - Wikipedia

    en.wikipedia.org/wiki/Optical_disc_packaging

    Stacks of compact disc jewel cases. Optical disc packaging is the packaging that accompanies CDs, DVDs, and other formats of optical discs.Most packaging is rigid or semi-rigid and designed to protect the media from scratches and other types of exposure damage.

  7. SPARS code - Wikipedia

    en.wikipedia.org/wiki/SPARS_code

    AAD is the SPARS code (highlighted in red) on Madonna's 1990 album, The Immaculate Collection. The SPARS code is a three-position alphabetic classification system developed in the early 1980s by the Society of Professional Audio Recording Services (SPARS) for commercial compact disc releases to denote aspects of the sound recording and reproduction process, distinguishing between the use of ...

  8. Digital copy - Wikipedia

    en.wikipedia.org/wiki/Digital_copy

    A digital copy is a commercially distributed computer file containing a media product such as a film or music album.The term contrasts this computer file with the physical copy (typically a DVD, Blu-ray, Blu-ray 3D, or Ultra HD Blu-ray disc) with which the digital copy is usually offered as part of a bundle.

  9. Verbatim (brand) - Wikipedia

    en.wikipedia.org/wiki/Verbatim_(brand)

    Verbatim is a brand for storage media and flash memory products currently owned by CMC Magnetics Corporation (CMC), a Taiwanese company that is known for optical disc manufacturing. Formerly a subsidiary of Mitsubishi Chemical, the global business and assets of Verbatim were sold to CMC Magnetics in 2019 at an estimated price of $32 million USD.