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Blu-rayBlu-ray (aka Bluray or bluray or BD) is an optical disc format, similar to a CD or DVD. It provides much higher resolution than a DVD (up to 1920 x 1080 pixels on Blu-ray compared to 720 x 576 on DVD). The term Blu-ray came from blue ray. A blue (rather than red) laser beam is reflected from the pits of the disk to read the information. Because the blue wavelength is thinner that the red wavelength, the pits can be smaller and hence more information is stored in the same amount of space. A Single layer Blu-ray disk has a capacity of 25GB compared to DVDs 4.7GB (for dual layer disks a blu-ray disk can hold up to 50GB). Blu-ray has capacity for 7.1 channels of audio compared to DVD's 5.1 channels. Some older players do not play CDs (LG BH100, Pioneer BDP-HD1 and Sony BDP-S1)Others had problems playing BD-R or BD-RE disks (Sharp BDHP20x) 
It is the only hi definition optical disk now format available. HD-DVD another competing format is no longer supported by the manufacturers. It plays in Play Station 3 (PS3) as well as Blu-ray players. These players are all backwardly compatible, meaning that they can play DVDs as well as CDs. Blu-ray has a protective coating that is not present on DVD disks. It also streams the data across much faster 36MBps compared to DVD's 11MBps. It is called Blu-ray because it uses a blue coloured laser beam to read the pits (or dye) in the disk in order to decipher it as a one or zero. The thinner wavelength of the blue laser (compared to the red laser) allows it to read smaller surface areas, hence allowing more data to be stored in the same space. DVD Infinity can transfer, convert and author Blu-ray disks from as well as duplicate and replicate quantities of Blu-ray disks for your company. For Blu-ray authoring see Blu-ray Authoring For Blu-ray replication see Blu-ray Replication For Blu-ray duplication see Blu-ray Duplication |
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