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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 ...
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.
The Analog Protection System (APS), also known as Analog Copy Protection (ACP), Copyguard or Macrovision, [1] is a VHS [2] and DVD copy protection system originally developed by the Macrovision Corporation. Video tapes copied from DVDs encoded with APS become garbled and unwatchable.
The DVD-ROM's main-data (§16 [3]), which are consecutive logical blocks of 2048 bytes, are structured according to the DVD-Video format. The DVD-Video contains (besides others) an MPEG program stream which consists of so-called Packs. If CSS is applied to the disc then a subset of all Packs is encrypted with a title-key.
A fragment of the DeCSS code, which can be used by a computer to circumvent a DVD's copy protection. DeCSS is one of the first free computer programs capable of decrypting content on a commercially produced DVD video disc. Before the release of DeCSS, free and open source operating systems (such as BSD and Linux) could not play encrypted video ...
Disc rot is the tendency of CD, DVD, or other optical discs to become unreadable because of chemical deterioration. The causes include oxidation of the reflective layer, reactions with contaminants, ultra-violet light damage, and de-bonding of the adhesive used to adhere the layers of the disc together.
DVD-Video was a consumer video format used to store digital video on DVDs. DVD-Video was the dominant consumer home video format in Asia , North America , [ 5 ] Europe , and Australia in the 2000s until it was supplanted by the high-definition Blu-ray Disc; both receive competition as delivery methods by streaming services such as Netflix and ...
This list of best-selling films in the United States is a list of the best-selling home video film titles sold in the United States. This list only includes physical media (such as VHS, DVD and Blu-ray), and does not include digital purchases or video rentals.