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A new optical disc format known as the Blu-ray disc is becoming popular. In what way is it different from the traditional DVD

2011

Emerging TechXIT, Science and Technology

A new optical disc format known as the Blu-ray disc is becoming popular. In what way is it different from the traditional DVD?
1. DVD supports standard definition video while Blu-ray disc supports high-definition video.
2. Compared to a DVD, the Blu-ray disc format has several times more storage capacity.
3. Thickness of Blu-ray discs is 2.4 mm while that of DVD is 1.2 mm.

(a)

1 only

(b)

1 and 2 only

(c)

2 and 3 only

(d)

1, 2 and 3

Answer:

(b)

Explanation

Blu-ray discs support high-definition video and have significantly more storage capacity than DVDs. Both Blu-ray and DVD discs have a thickness of 1.2 mm.