Blue Ray Discs

Blue ray discs are the latest breakthrough in technology.  This latest optical disc system is a remarkable creation of the BDA (Blu Ray Disc Association) which consists of TDK, Thomson, Sharp, Pioneer, Philips, Mitsubishi, Sony, JVC, Panasonic, Samsung, Apple, Hitachi, LG, Dell and HP.  The BDA boasts 180 of the world’s leading consumer electronics, media and personal computer manufacturers.

top blue ray discs

Just as the name denotes, the blue ray discs use a blue-violet laser to access data as against the existing technology of red laser. A blue-violet laser (405nm) possesses very shorter wavelength than a red laser (650nm), thus enabling the focusing of the laser spot with exceptional accuracy.  The plus point of this is that it allows data to be held in smaller space as the data could be squeezed in compactly which in turn allows the user to store extra data on the disc even though the disc is more or less the same size as a compact disc or a DVD.  Moreover, blue ray discs afford a comprehensive storage capability.  A single-layer blue ray disc can store up to 27GB of data which is more than 2 hours of high-definition video and 13hours hours of standard video.  The double-layer blue ray disc could hold fifty GB of data which is 4.5 hours of HD video and normal video in excess of twenty hours.

blue ray discs on

Blue ray discs are the ideal expression of the last in consumer experience.  It additionally permits the rewriting, recording, playing and distribution of HD videos. The blue ray discs have been based on the bare disc physical factor which renders it consistent with compact discs and DVDs.

Blue ray discs are soft on the producers too as these are made by injection-molding technique on a single 1.1-mm disc in contrast to the traditional which by that cuts down on overheads. The costs thus saved are spent on the addition of the shielding layer necessary on blue ray discs with the result that the end price being more or less the same as that of a DVD.  Blue ray discs also boasts of an advanced data transfer rate of thirty-six Mbps over the present-day DVDs that does the data transferring @ ten Mbps.  This means that it would take only an hour and a half to record 25GB of data onto a blue ray disc.

blue ray discs

The conventional DVDs and CDs initially came into the market with merely read-only formats.  Anyway, the blue ray discs hope to be introduced in a comprehensive range of formats that is to include –ROM (read-only), BD-R (recordable) and BD-RE (rewritable).