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The advent of Blu-ray technology has led to the introduction of high capacity storage discs to meet the demand cause by the rapid growth of high definition television (HDTV).

Blu-ray discs get their name from blue laser technology. The shorter wavelength of the laser is the reason it is blue in colour. The blue laser has a wavelength of 405nm compared with the wavelength of 650nm for DVD which utilises red laser technology. The benefit of having a blue laser with a shorter wavelength means it is possible to write smaller data pits and therefore vastly increase the amount of data on the disc.

Blu-ray discs offer 3 to 5 times the storage capacity of a standard recordable DVD disc, enabling the recording, rewriting and playback of high definition video (HD).

Verbatim BD-RE SL 25GB 2x 10 Pack Spindle. Type: BD-RE, Native capacity: 25 GB, Recording laser wavelength: 405 nm. BD-RE read speed: 2x. Quantity per pack: 10 pc(s), Package type: Spindle

Type	BD-RE
Native capacity	25 GB
Printable	No
Recording laser wavelength	405 nm
BD-RE read speed	2x
Quantity per pack	10 pc(s)
Package type	Spindle