What is Blu-Ray ?

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Blu-ray Discs Frequently Asked Questions

What Is Blu-ray?

Blu-Ray is a new generation, high capacity and speed data storage technology. It is supported by several industry leading companies and has a bright future according to professionals.

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History of Blu-ray

The Blu-ray Disc standard was jointly developed by a group of consumer electronics and PC companies called the Blu-ray Disc Association (BDA). It is currently competing with the HD DVD format for wide adoption as the preferred next generation optical standard, similar to the videotape format war between JVC's VHS and Sony's Betamax. As of 2006, neither the Blu-ray Disc nor the HD DVD has succeeded in supplanting the present home video standard, the DVD.

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Why The Name Blu-ray?

The name Blu-ray came from the fact that the laser beam which reads the data from the new discs is blue instead of red which is used for current DVDs and CDs. This new blue laser is at the heart of Blu-ray Disc Technology (i.e. blue ray of light).

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How Much Data and Video Can You Fit On A Blu-ray Disc?

- About 9 hours of high-definition (HD) video can be stored on a 50GB disc.
- About 23 hours of standard-definition (SD) video can be stored on a 50GB disc.

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Can I Play A Blu-ray Disc On My Dvd Player?

As DVD players use a red laser to read the information from a disc, they are not capable of reading the very fine pits of a Blu-ray Disc, which requires a blue laser. Furthermore, DVD-Video players lack the advanced technology to decode the High Definition picture from a Blu-ray Disc...

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Which Companies Support Blu-ray?

The Blu-ray Disc format was developed by the Blu-ray Disc Association (BDA), a group of leading consumer electronics, personal computer and media manufacturers, with more than 170 member companies from all over the world.

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How About Digital Rights Management?

Blu-ray Disc has an experimental digital rights management (DRM) feature called BD+ which allows for dynamically changing keys for the cryptographic protections involved. Should the keys currently in use be "cracked" or leaked, manufacturers can update them and build them into all subsequent discs, preventing a single key discovery from permanently breaking the entire scheme.

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What Are The Blu-ray Disc Formats?

The Blu-ray Disc Association specified that formats for end-users are BD-ROM, BD-R and BD-RE.

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How Fast Can You Read/Write Data On A Blu-ray Disc?

According to the Blu-ray Disc specification, 1x speed is defined as 36Mbps (4,495,625 bytes/sec or 35,965,000 bits/sec). However, as BD-ROM movies will require a 54Mbps data transfer rate the minimum speed we're expecting to see is 2x (72Mbps).

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Is It Possible To Use CD’s Or DVD’s On Blu-ray Driver?

Yes, several leading consumer electronics companies (including Sony, Panasonic, Philips, Samsung, Pioneer, Sharp and LG) have already demonstrated products that can read/write CDs, DVDs and Blu-ray discs using a BD/DVD/CD compatible optical head...

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Is There Any Differences Between Blu-ray And HD-DVD?

Exactly yes. Blu-ray and HD-DVD have lots of differences between each other. They have different techniqual properties like data storage capacity and data transfer rate.

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What Are The Benefits Of Blu-ray Technology?

The Blu-ray technology offers wide variety of advantages to their users. The format does not provide as big of a technological step as Blu-ray Disc.

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