COMPUTER HARDWARE
STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Smaller ‘pits’ and ‘bumps’ bigger storage, 5 times than DVD
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DVD have smaller storage size compared to Blu-ray
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Blu-Rays are used for high definition sound track only
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Comes with a secure encryption system
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Detailed explanation-1: -A DVD is a standard definition device. You won’t get high-definition movie viewing on your DVD, just 480 SD. On the other hand, Blu-ray is made for HD, and you’ll get the best picture possible, with 1080 HD capability for your Blu-ray movies. So if you are looking for a quality picture, Blue Ray is the clear winner.
Detailed explanation-2: -A DVD will only be able to store about 4.7 GB of data, which equals about two hours of a movie. A Blu-ray can hold about 25 GB of data, which allows for more high-definition information. It can hold about 13 hours of standard definition information or about two hours of high-definition information.
Detailed explanation-3: -The encryption used as part of this is 128-bit AES encryption. The Blu-ray players or the device have the Device key while the disks have Media Key Block. Using these two a Media key is generated which decrypts the Title key which is finally used to decrypt the audio and video in the disc.