enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. List of Compact Disc and DVD copy protection schemes

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

    Xbox (DVD) Two sets of media descriptors are used. Initially, and on typical DVD-ROM drives, only a short partition containing a brief DVD Video can be seen. The lead-out section of the disk stores a second set of media descriptors describing the bounds of the main partition. It also contains a partially-encrypted "security sector" used for ...

  3. Compact Disc and DVD copy protection - Wikipedia

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

    One of the sub-channels — the Q-channel — states the drive's current position relative to the beginning of the CD and the current track. This was designed for Audio-CDs (which for a few years were the only CDs), where this information is used to keep the drive on track; nevertheless the Q-channel is filled even on Data-CDs.

  4. DeCSS - Wikipedia

    en.wikipedia.org/wiki/DeCSS

    The first release of DeCSS was preceded by a few weeks by a program called DoD DVD Speed Ripper [2] from a group called DrinkOrDie, which didn't include source code and which apparently did not work with all DVDs. DrinkOrDie reportedly disassembled the object code of the Xing DVD player to obtain a player key. The group that wrote DeCSS ...

  5. Analog Protection System - Wikipedia

    en.wikipedia.org/wiki/Analog_Protection_System

    Discs made with DVD copying programs such as DVD Shrink automatically disable any Macrovision copy protection. The ease with which Macrovision and other copy protection measures can be defeated has prompted a steadily growing number of DVD releases that do not have copy protection of any kind, Content Scramble System (CSS) or Macrovision.

  6. PowerDVD - Wikipedia

    en.wikipedia.org/wiki/PowerDVD

    PowerDVD is a media player software for Microsoft Windows created by CyberLink, for DVD movie discs, Blu-ray movie discs, and digital video files, photos and music.. PowerDVD is offered in various versions, which vary greatly in terms of functionality, and can be expanded to include additional functions such as playback of licensed audio formats or power-saving functions for use on notebooks ...

  7. Optical media preservation - Wikipedia

    en.wikipedia.org/wiki/Optical_Media_Preservation

    The preservation of optical media is essential because it is a resource in libraries, and stores audio, video, and computer data. While optical discs are generally more reliable and durable than older media types, (magnetic tape, LPs and other records) environmental conditions and/or poor handling can result in lost information.

  8. Duplicating machines - Wikipedia

    en.wikipedia.org/wiki/Duplicating_machines

    One of the polygraphs used by Thomas Jefferson, a portable version. In document duplication (as opposed to law enforcement and such), a polygraph is a mechanical device that moves a second pen parallel to one held by a writer, enabling the writer to make a duplicate of a document as it is written. Polygraphs appeared in the 17th century but did ...

  9. Optical disc recording modes - Wikipedia

    en.wikipedia.org/wiki/Optical_disc_recording_modes

    DAO recording is also the only way to write data to the unused R-W sub-channels. This allows for extended graphic and text features on an audio CD such as CD+G and CD-Text. It is also the only way to write audio files that link together seamlessly with no gaps, a technique often used in progressive rock, trance and other music genres.