Blu-ray discs
(also known as 'BD'), are a next-generation
optical disc format jointly developed by the Blu-ray
Disc Association (BDA).
The Blu-ray format offers more than five times
the storage capacity of traditional DVDs and
can hold up to 25GB on a single-layer disc and
50GB on a dual-layer disc by using a blue laser
with a shorter wavelength of 405nm (DVDs use
a longer 650nm wavelength red laser and CDs are
longer still at 780nm). The shorter wavelength
of the Blu-ray system allows the laser to focus
on smaller spots and so the pits and spiral groove
in the discs can be made even smaller and tighter.
Blu-ray discs are exactly the same
physical size as DVDs, CDs and HD-DVD discs at 12cm
in diameter and 1.2mm in thickness.
The diagram below
shows the difference between single and dual layer
Blu-ray discs :
Single layer Blue-ray
(25GB)
Dual layer Blu-ray (50GB)
The Blu-ray Disc Association is
a group of electronics and media manufacturers that
include Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi,
Panasonic, Pioneer, Philips, Samsung, Sharp, Sony,
TDK and Thomson. The Blu-ray format was developed
for the recording, rewriting and playback of high-definition
video (HD), in addition to storing large amounts
of data.
Blu-ray discs are currently competing
with HD
DVD discs as a future replacement for
the DVD format.
Below is a diagram
illustrating the difference in track pitch between
DVDs and Blu-ray discs:
Wizbit do not currently provide
Blu-ray duplication services, but hope to introduce
this service in 2009. Please contact
us for
further information.
A selection of low prices for some of our most popular items. The prices include adding the contents to the discs, full colour printing on the discs and free UK courier delivery.
Print and burn your own CDs and DVDs by buying the blank discs, labels and packaging from our online store, including our unique and unusual business card size discs, mini 8cm circular discs, coloured CDs and vinyl-effect CDs in the style of old records.
