Why all DVDs are Copy Protected
Why all DVDs are Copy Protected with Commercial DVD protection schemes?
Copy protection is also called as copy obstruction, copy prevention, content protection or copy restriction, but the most significant usage of this technique acts on commercial DVD protection schemes. For the purpose of preventing pirate and abuse use of DVD content, DVD distributors played a really hard ball game with piracy by introducing lots of up-to-date DVD Copy Protections. And this cat and mouse game not only establishes close contact between DVD publishers and copiers, but also majorly harms the interests of DVD end consumers.
Why all DVDs are Copy Protected?
Actually this question is self-explanatory and it is unnecessary to better interpretation: commercial DVDs need strong protection methods to protect the lawful rights and interests of the DVD distributors. While in this article we will make some idle talk about other part of DVD protection which may possibly become impairment of our benefits anyway. So this question is switch to:
How inconvenient DVD Copy Protection brings us?
One of the most frequently came across embarrassments is you buy a Harry Potter & the Deathly Hallows DVD movie from UK, but when getting back to American, you will poorly find out that it is not playable on your US DVD player due to DVD region codes are not matched. Below is a chart which indicates how DVD Copy Control Association (DVD CCA) smashes this earth to six parts:
Elsewhere, inability to playback DVD movie without DVD player is far more frustrating than above DVD region code restriction. Imagine that after purchasing a DVD title from Amazon, you have to pay twice to get an iTunes version for playback it on iPad, iPod etc. Although video content sold on the iTunes Store was increased from 320x240 to 640x480, DVD image quality and 6ch sound still prevails. And of course you can not simply add DVD content into iTunes, iPod, iPad, or other mobile devices owing to DVD copy protections.
Primary DVD Copy Protections List
Content Scramble System (CSS)is a Digital Rights Management (DRM) and encryption system employed on almost all commercially produced DVD-Video discs.
Region Code Enhanced, also known as just "RCE" or "REA", this was a retroactive attempt to prevent the playing of one region's discs in another region, even if the disc was played in a region free player. The scheme was deployed on only a handful of discs.
The User Operation Prohibition (UOP)is a form of use restriction used on video DVD discs. Most DVD players prohibit the viewer from performing a large majority of actions during sections of a DVD that are protected or restricted by this feature. It is used mainly for copyright notices or warnings, such as an FBI warning in the United States.
ARccOSis 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).
Digital rights management (DRM)technologies attempt to control use of digital media by preventing access, copying or conversion to other formats by end DVD users.
The Analog Protection System (APS), also known as Copyguard, is a DVD copy prevention system originally developed by Macrovision. Video tapes copied from DVDs encoded with APS become garbled and unwatchable.
And as a lawfully DVD possessor, you can simply find a DVD backup software which is capable of defeating all known DVD protections for you. And then you are set free to watch DVD movies with computer or on the mobile.