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 while that of DVD is 1.2 mm.Which of the statements given above is/are correct?
✓ Correct answer: b) 1 and 2 only
ExplanationStatement 1 is correct: DVD stands for “Digital Versatile Disk” or “Digital Video Disc”.It is a type of digital optical disc storage that can hold any kind of digital data but is frequently used to store pictures, audio, and video in standard definition.Blu-ray Disc is a digital disc storage format similar to CD and DVD, that is designed to record and play a large amount of data with high-definition quality.Statement 2 is correct: Blu-ray Disc media include these features: 50GB capacity - Each disc can hold more than 10 standard DVDs.Statement 3 is incorrect: The size of the Blu-ray disc is 120 millimetres in diameter with 1.2 millimetres thickness, which is the same as the size of a CD and DVD.210
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