Q.  What is Blu-ray Disc? [BD for short]


Now abbreviated to BD, as appearing as part of the model number on Blu-ray Disc Players, this high quality media is a signal embedded onto a similar disc design we have been made familiar with for years as being a CD or DVD.

Physical similarity to the silver disc is agreed though technically there is a vast difference. The Blu-ray Disc has a memory storage capacity far greater than any CD or DVD thus enabling amazing High Definition picture and sound.

Click on this INFO link and find out a whole lot more.


Q.  What is the correct abbreviation of Blu-ray Disc?


Commonly used on both hardware and software [Equipment and Discs], the format of Blu-ray Disc is usually shortened down to BD


Q.  When was Blu-ray Disc introduced?


The Blu-ray Disc [BD] specification was officially announced in February 2002 though the actual BD players did not appear globally until early 2006.


Q.  What does the name Blu-ray Disc mean?


The name of Blu-ray Disc refers to the blue laser that is used to read from and record to a Blu-ray disc. In comparison to a red laser, as used in DVD and CD, a blue laser allows for a much higher density and hence larger storage capacity.

"Blu" is intentionally spelled without an "e" to allow for a distinctive registration of the trademark name.


Q.  What Blu-ray Disc variants are available?


As with CD and DVD, Blu-ray Disc media comes in pre-recorded, recordable and re-writable variants.

The Pre-recorded Disc is called BD ROM and usually contains movies or re-issued TV shows in High Definition [HD] format.

The Recordable Disc is called BD R and can be used for archival of huge amounts of data or video.

The Re-writable Disc is called BD RE and offers the same large capacity of a BD R in a format that allows for repetitive usage.


Q.  What is the capacity of a Blu-ray Disc?


All three Blu-ray Disc types come in two versions: Single Layer and Double Layer.

A Double Layer disc may hold up to twice the amount of data or video compared to a Single Layer disc using two independent layers placed on one side of the disc to store its information.

A Single Layer disc holds up to 25 gigabytes, while a Double Layer holds up to 50 gigabytes of data or video.

This massive holding of data allows the Double Layer disc to have up to 9 hours of Standard Definition [SD] quality and up to 3 hours of High Definition [HD] quality. 


Q.  Can Blu-ray Disc products play DVD and CD?


All Blu-ray Disc [BD] player products will play their DVD and CD counterpart formats in comparison to the ability of DVD players to play CDs. It is now becoming more and as standard as the majority of companies have developed laser components and pickup units being able to read CD, DVD and BD.  


Q.  Can Blu-ray Disc products record DVD and CD?


Implementation of DVD or CD recording capability is a manufacturers' option. Currently some Blu-ray Disc video products allow you to record DVDs as well. It is expected that eventually most Blu-ray Disc PC drives will support the recording of CD, DVD and BD.


Q.  Can I play a Blu-ray Disc on my DVD player?



As DVD Players use a Red Laser to read information from a disc, they are not capable of reading the very fine 'pits' embedded on a Blu-ray Disc, which requires the precision of a Blue Laser.

Furthermore, DVD video players lack the advanced technology to decode the High Definition picture from a Blu-ray Disc. 


Q.  What Discs are Available?


The available library of Blu-ray Discs is already vast and continues to dramatically grow with new releases of the very latest in movies - just click and take a look.

Regarding 3D Blu-ray Discs, though titles were limited during 2009, by the end of 2010 there is to be an expected 200+ titles available.