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. The thickness of BD is 2.4 mm white that of DVD is 1.2 mm. Which of the statements given above is/are correct?

QUESTION

Medium

Science & Technology

Prelims 2011

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?

DVD supports Standard Definition video while BD supports High Definition video.
Compared to a DVD, the BD format has several times more storage capacity.
The thickness of BD is 2.4 mm white that of DVD is 1.2 mm.

Which of the statements given above is/are correct?

Select an option to attempt

Explanation

The Blu-ray Disc (BD) is indeed different from the traditional DVD in several ways. Firstly, the DVD supports Standard Definition video while BD supports High Definition video. This means that the quality of video that can be stored and played back on a BD is significantly higher than that on a DVD. Secondly, the BD format has several times more storage capacity compared to a DVD. This allows for more data to be stored on a single disc. However, the third statement is incorrect. The thickness of both BD and DVD is 1.2 mm, not 2.4 mm for BD as mentioned in the statement. Therefore, only the first two statements are correct.

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