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  2. DVD region code - Wikipedia

    en.wikipedia.org/wiki/DVD_region_code

    DVD region code. DVD region codes are a digital rights management technique introduced in 1997. [1] It is designed to allow rights holders to control the international distribution of a DVD release, including its content, release date, and price, all according to the appropriate region. This is achieved by way of region-locked DVD players ...

  3. ARccOS protection - Wikipedia

    en.wikipedia.org/wiki/ARccOS_protection

    ARccOS (Advanced Regional Copy Control Operating Solution) is a copy-protection system made by Sony that is used on some DVDs.Designed as an additional layer to be used in conjunction with Content Scramble System (CSS), the system deliberately creates corrupted sectors on the DVD, which cause copying software to produce errors (see bad sector).

  4. Sony BMG copy protection rootkit scandal - Wikipedia

    en.wikipedia.org/wiki/Sony_BMG_copy_protection...

    The two pieces of copy-protection software at issue in the 2005–2007 scandal were included on over 22 million CDs [7] marketed by Sony BMG, the record company formed by the 2004 merger of Sony and BMG's recorded music divisions. About two million of those CDs, [7] spanning 52 titles, contained First 4 Internet (F4I)'s Extended Copy Protection ...

  5. DVD-Video - Wikipedia

    en.wikipedia.org/wiki/DVD-Video

    A normal DVD player can only play region-coded discs designated for the player's own particular region. However, a code-free or region-free DVD player is capable of playing DVDs from any of the six regions around the world. The CSS license prohibits manufacturing of DVD players that are not set to a single region by default. While the same ...

  6. List of Compact Disc and DVD copy protection schemes

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

    DVD region code. Restricts region where media can be played by matching region number with configuration flag in DVD players. LaserLock. Includes hidden directory on the CD containing corrupted data which will cause errors while being copied. SafeDisc (version 4) See SafeDisc (versions 1-5) in previous section. SecuROM.

  7. Universal Media Disc - Wikipedia

    en.wikipedia.org/wiki/Universal_Media_Disc

    v. t. e. UMD disc front. The Universal Media Disc (UMD) is a discontinued optical disc medium developed by Sony for use on its PlayStation Portable handheld gaming and multimedia platform. It can hold up to 1.8 gigabytes of data and is capable of storing video games, feature-length films, and music.

  8. List of Sony Walkman products - Wikipedia

    en.wikipedia.org/wiki/List_of_Sony_Walkman_products

    The player could only play ATRAC formatted files, Sony's proprietary format, so was not technically an "MP3 player". The user needed to transfer songs via USB with bundled software OpenMG Jukebox (only works with Windows 98 software, later known as SonicStage ).

  9. AACS encryption key controversy - Wikipedia

    en.wikipedia.org/wiki/AACS_encryption_key...

    AACS encryption key controversy. Internet users began circulating versions of this image, calling it the Free Speech Flag, in blog posts on dozens of websites and as user avatars on forums such as Digg. The first fifteen bytes of the 09 F9 key are contained in the RGB encoding of the five colors, with each color providing three bytes of the key ...

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