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).

High Capacity - 25GB
Laser Wavelength: 205nm.
Hard Coat protective layer.
Extremely long archival life.
Excellent playback performance.
BD-R is for use in BD drives and recorders. Longer lifetime with Hard Coat Protection.
This disc complies with BD-R Specification Version 1.1
For use only in drives or recorders that support 25GB Blu-ray Discs without cartridge.