Verbatim BD-R SL Datalife, 25GB, 6x speed, 5-pack, BD-R version 1.3, 5 Pack Jewel Case

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.

• Capacity: 25GB
• Speed: 6x
• BD-R specification 1.3