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Optical Media Challenge

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Test your optical storage facts

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Optical Media Challenge
 

Optical Media ChallengeOnline version

Test your optical storage facts

by Mateo Torres
1

Blu-ray discs are read with a red laser around 650 nm.

2

CDs can store up to 50 GB on a single layer.

3

Optical storage uses a precisely focused laser to read data from pits and lands.

4

CD-ROM capacity is about 700 MB per disc.

5

Optical storage performance surpasses modern SSDs in random access speed.

6

All optical discs are read-only by design.

7

DVDs commonly hold 4.7 GB per single-layer disc.

8

Data on optical discs is encoded as a pattern of pits and lands on the surface.

9

DVDs use an infrared 780 nm laser for reading.

10

Blu-ray discs typically store 25 GB per layer.

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