Blu-ray Disc Association a group of worlds leading electronic manufacturers had jointly developed new disc named Blu-ray Disc not Blu-ray. Blue-ray Disc is a high density optical Disc. This disc was developed to store large amount of data on a disc. This disc have 120mm diameter & 1.2mm thickness.
DVD uses 650nm red laser diode while Blue-ray Disc uses 405nm Blue laser diode. The laser is known as Blue but the actual color is violet. The blu-ray Disc have capacity to store more than five times data of DVD'S. Blue-ray single layer Disc can store 25 GB data, Dual layer disc have 50 GB storage capacity. 3 layers of Blue-ray disc can store 100 GB of storage. Blue-ray Disc Association is working on further developments in it. Recently Pioneer have developed a Blue-ray Disc which have 500 GB storage capacity with 20 layers.
This is a very big development by Blue-ray Disc Association(BDA). Worlds 200 largest electronics, Personal computer, Music, Games companies currently support this format. From now you will see all movies, audios on this Blue-ray Disc. This is a best source of storing date. This development is giving hint to us that in future this discs can be used in computers, laptops on the place of Hard Discs to store the data on 17th December 2009 Blue-ray Disc Association officially announced 3D specs for Blu-ray Disc.
We have been using Compact Disc i.e. CD from it was commercially available since 1982. A compact disc (CD) have capacity to store 700MB data. CD is available at low cost in market. Although CD is a good medium to store the data was demand of higher storage was raised. In 1995 Digital Versatile Disc (DVD) was developed with better storage capacity. A DVD can store 5 to 10 times more data than CD. A DVD can store 4.7 GB on single sided single layer Disc. Single side dual layer DVD and Dual side single layer DVD have storage capacity up to 8.5 GB & 9.4 GB simultaneously. If you have dual side dual layer DVD then it can store 17.08 GB data.
Now in this century demand High Definition (HD) video is raising. To store this type of high quality data you need more storage. Blu-Ray Disc (BD) is providing 25 GB to 50 GB storage on a single layer disc. You can easily store HD videos on Blu-ray disc (BD). There is no other format is available to provide high quality storage.
Applications of Blu-Ray Disc (BD):
• Mass Data Storage
• Professional Storage
• High Definition Television Recording
• High Quality 3D Videos
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