UPSC Exam  >  UPSC Questions  >  A new optical disc format known as the bluray... Start Learning for Free
A new optical disc format known as the bluray 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 is 1.2 mm.
​Q. Which of the statements given above is/are correct?
  • a)
    1 only.
  • b)
    1 and 2 only.
  • c)
    2 and 3 only.
  • d)
    1, 2 and 3.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A new optical disc format known as the bluray disc (BD) is becoming po...
Blu-ray Disc (official abbreviation BD) is an optical disc storage medium designed to supersede the DVD format. The disc diameter is 120 mm and disc thickness 1.2 mm plastic optical disc, the same size as DVDs and CDs. Blu-ray Discs contain 25 GB (23.31 GiB) per layer, with dual layer discs (50 GB) being the norm for feature-length video discs.
Blu-ray (not Blue-ray) also known as Blu-ray Disc (BD), is the name of a new optical disc format jointly developed by the Blu-ray Disc Association (BDA), a group of the world's leading consumer electronics, personal computer and media manufacturers (including Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi, Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson). The format was developed to enable recording, rewriting and playback of highdefinition video (HD), as well as storing large amounts of data. The format offers more than five times the storage capacity of traditional DVDs and can hold up to 25GB on a single-layer disc and 50GB on a dual-layer disc. This extra capacity combined with the use of advanced video and audio codecs will offer consumers an unprecedented HD experience. While current optical disc technologies such as DVD, DVD±R, DVD±RW, and DVD-RAM rely on a red laser to read and write data, the new format uses a blue-violet laser instead, hence the name Blu-ray. Despite the different type of lasers used, Blu-ray products can easily be made backwards compatible with CDs and DVDs through the use of a BD/DVD/CD compatible optical pickup unit.
View all questions of this test
Most Upvoted Answer
A new optical disc format known as the bluray disc (BD) is becoming po...
The Difference between DVD and Blu-ray Disc (BD)

The question asks about the differences between the traditional DVD and the new optical disc format known as the Blu-ray Disc (BD). The correct statements are:

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.

Explanation:

1. Video Quality
- DVD supports standard definition video with a resolution of 720x480 pixels.
- BD supports high definition video with a resolution of 1920x1080 pixels or even higher.

2. Storage Capacity
- A single-layer DVD can store up to 4.7 GB of data.
- A single-layer BD can store up to 25 GB of data, and a dual-layer BD can store up to 50 GB of data. This means that BD has several times more storage capacity than DVD.

3. Thickness
- The thickness of a BD is 2.4 mm, while the thickness of a DVD is 1.2 mm. This difference in thickness is due to the different technologies used to read and write data on the disc.

Conclusion:

In summary, the Blu-ray Disc (BD) format is different from the traditional DVD in terms of video quality, storage capacity, and thickness. BD supports high definition video, has several times more storage capacity, and is thicker than DVD.
Explore Courses for UPSC exam

Similar UPSC Doubts

Top Courses for UPSC

A new optical disc format known as the bluray 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 is 1.2 mm.Q.Which of the statements given above is/are correct?a)1 only.b)1 and 2 only.c)2 and 3 only.d)1, 2 and 3.Correct answer is option 'B'. Can you explain this answer?
Question Description
A new optical disc format known as the bluray 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 is 1.2 mm.Q.Which of the statements given above is/are correct?a)1 only.b)1 and 2 only.c)2 and 3 only.d)1, 2 and 3.Correct answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about A new optical disc format known as the bluray 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 is 1.2 mm.Q.Which of the statements given above is/are correct?a)1 only.b)1 and 2 only.c)2 and 3 only.d)1, 2 and 3.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A new optical disc format known as the bluray 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 is 1.2 mm.Q.Which of the statements given above is/are correct?a)1 only.b)1 and 2 only.c)2 and 3 only.d)1, 2 and 3.Correct answer is option 'B'. Can you explain this answer?.
Solutions for A new optical disc format known as the bluray 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 is 1.2 mm.Q.Which of the statements given above is/are correct?a)1 only.b)1 and 2 only.c)2 and 3 only.d)1, 2 and 3.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of A new optical disc format known as the bluray 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 is 1.2 mm.Q.Which of the statements given above is/are correct?a)1 only.b)1 and 2 only.c)2 and 3 only.d)1, 2 and 3.Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A new optical disc format known as the bluray 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 is 1.2 mm.Q.Which of the statements given above is/are correct?a)1 only.b)1 and 2 only.c)2 and 3 only.d)1, 2 and 3.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for A new optical disc format known as the bluray 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 is 1.2 mm.Q.Which of the statements given above is/are correct?a)1 only.b)1 and 2 only.c)2 and 3 only.d)1, 2 and 3.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of A new optical disc format known as the bluray 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 is 1.2 mm.Q.Which of the statements given above is/are correct?a)1 only.b)1 and 2 only.c)2 and 3 only.d)1, 2 and 3.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A new optical disc format known as the bluray 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 is 1.2 mm.Q.Which of the statements given above is/are correct?a)1 only.b)1 and 2 only.c)2 and 3 only.d)1, 2 and 3.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice UPSC tests.
Explore Courses for UPSC exam

Top Courses for UPSC

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev