Holographic Versatile Disc

DVD's, those were legends. Having storage of 4.7GB, that was huge during the time of CD's. Now, we have Blu-ray disc's which can store up to 50GB data in a single disc. That's pretty large,isn't it? These discs are specially used for recording HD videos and used in gaming consoles such as PS3. Blu-ray Disc have same size and diameter as that of DVD's but have much more significant write speed and can store much more data. They are slowly replacing DVD's.

Have you ever heard of Holographic Versatile Disc? These discs were developed between April 2004 and mid-2008. These discs can  store up to several terabytes of data on an optical disc! These discs are 10cm in diameter. This is the best we can get out of a optical disc. Having storage capacity in Terabyte is extremely large. Even hard-disks don't come up in such high storage. However, these discs have yet not come in practical use as Holographic Versatile Disc Drive initially costs 15,000$ which is extremely expensive and a single disc costs 150$ to 180$. Now, no one would like to spend so much money on a optical disc drive, would anyone?But, prices are gradually decreasing So, this technology is not of much use for now but it has a great future ahead. Once people will find Blu-ray insufficient of holding data's, these discs will surely come to use. Stay tuned and stay updated!

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