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Blu-ray Protection Computers Articles | December 20 Mason Rudolph Jersey , 2006
Blu-ray discs are here to supersede DVD in every way, be it quality of picture (1080p), interactivity (BD-J) Jerome Bettis Jersey , size (50Gb) and now protection.

Blu-ray Protection

Blu-ray discs are here to supersede DVD in every way, be it quality of picture (1080p), interactivity (BD-J) Zach Gentry Jersey , size (50Gb) and now protection.

CSS

Conventionally the DVD used CSS (content scrambling system) as its encryption, although mediocre, the development of a new encryption would have been time consuming and would have caused delays. Hackers decrypted the system in little time inducing a loss of billions. The main decryption known today is DeCSS created by Jon Lech Johanssen (alias DVD jon) Benny Snell Jr. Jersey , who proclaims in his defence that he simply wanted to back up his own collection of legally purchased DVD.

Blu-ray

Initially Blu-ray was introduced by Sony as a larger recording media for back up purposes but as there was demand for high definition movies that required high capacity media, the amalgamation of the two was inevitable. Having learnt from the mistakes of CSS a better encryption method was needed.

AACS

AACS (advanced access content system) jointly developed by Sony, Toshiba Justin Layne Jersey , Warner, Panasonic, IBM Diontae Johnson Jersey , Microsoft and Intel will be used with both HD-DVD and Blu-ray. This system can stop a device from playing any more movies causing it to be useless. This is done if the machine is hacked to perform an illegal rip. What AACS can do is disable the decryption keys unique to that device. AACS also incorporates an image constrain token (ICT); this applies to analogue video outputs downgrading the HD video signal to a maximum resolution of 960 x 540. ICT is only an option for the video content owner. An audio watermark is another feature of AACS again being optional to the video content owner which is an inaudible signal inserted into the audio track.

ROM-MARK

In addition to AACS the Blu-ray association have decided to add another two layers to the BD-ROM the ROM-Mark and the BD+. The latter is something we will discuss later.

The ROM-mark is another layer added to the protection of the disc from pirates. It is an analogue level mechanism of bit-by-bit copy protection and will be embedded in pre-recorded ROM media such as movies, music and games. The ROM-mark is invisible to the consumer and requires special Blu-ray manufacturing equipment to be created.

BD+

BD+ is a variant of a technology called self-protecting digital content (SPDC). This provides dynamic renewable protection. Title specific code is extracted from the disc and embedded into a virtual machine, security software checks are done by the disc to secure its own playback. Inevitably what this does is allows video content providers to renew content protection on BD-ROM players which have been hacked.

Conclusion

The future of Blu-ray protection is important and imperative in an age of hackers. Their philosophy at getting back at the big movie corporations and their rip-off to consumers not surprisingly has the majority vote with people who want to pay less.

Whether this protection will suffice in this day and age is difficult Devin Bush Jersey , we must remember that hackers have a lot of time and resources to achieve their goal; however

this time round the developers of Blu-ray protection have been working on a better time schedule to come up with something water tight. Unfortunately I believe it will only be within a year before some technique is found to copy Blu-ray movies as very feasible ideas have already been posted on the internet.

Article Tags: Blu-ray Protection Blu-ray, Blu-ray Protection, Protection Blu-ray Steelers Kids Jersey , Video Content

Coach Purse Are Meant For Men And Women Both - Juicy Couture Offers The Varieties

Posted On : Jul-07-2011 | seen (477) times | Article Word Count : 426 |

Coach purse lets one to arrange their things neatly in different compartments. The shapes, designs and colours show that one is never run out of options when choosing the coach purses at Juicy Couture outlet. A coach purse is as important accessory to a lady as are the handbags. The coach purse derives its name from the word coach meaning compartments or partitions. A coach purse usually comes with different partitions within with or without zippers so that the user can segregate their items neatly in each part. This gives a tidy look as well as prevents the things from falling off while looking for something else in the purse. Here again the coach purse is a uni-sex accessory and need not be thought of an accessory restricted for use by ladies. Well, the first statement in the article is the general notion Steelers Youth Jersey , but even men do make use of coach purses to . Cheap Hats Wholesale Jerseys China Free Shipping Cheap Hoddies Cheap Hoddies Cheap NCAA Jerseys Wholesale Cheap Hats Cheap NHL Hoddies Cheap Nike NFL Shirts Cheap T-shirts China Wholesale NHL Hats