Question

96. A new optical disc format known as the Blu-ray Disc (BD) is becoming popular. In what way is it different from the traditional DVD?
1. DVD supports Standard Definition video while BD supports High Definition video.
2. Compared to a DVD, the BD format has several times more storage capacity.
3. Thickness of BD is 2.4 mm while that of DVD is1.2 mm.
Which of the above statement(s) is/are correct?

• A. Only 1
• B. Only 1 and 2
• C. Only 2 and 3
• D. All of the above

Answer 1

The correct option is B Only 1 and 2

Blu-ray Disc which is 1.2 mm thick is much advanced next-generation optical disc format which can store high-definition video and high-density data and has huge capacity. Normal Digital Video Disk supports Standard Definition video. Blu-ray Disc has capacity to store information or data 5 times as compared to normal DVDs and can keep data upto 25GB on single layer disc while 50GB information on dual layer disc.