Types of storage devices, their speeds and capacity

Optical Media

NameSpeedCapacity
DVD 5 SS SL (Single-sided, Single Layer)4.7 GB
DVD-9 SS DL (Single-sided, Double Layer)8.5 GB
DVD-10 DS SL (Double-sided Single Layer)9.4 GB
DVD-18 DS DL (Double-sided, Double Layer)17 GB

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