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BKSTS Illustrated Dictionary of Moving Image Technology, 4th Edition by Martin Uren

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Appendix YDVD formats

DVD refers to a 12 cm digital disc which can have a variety of options for capacity and use, described below. It achieves a much higher storage capacity than CD by using a shorter wavelength laser beam, smaller pits and narrower track pitch (1). Single-sided and double-sided versions are possible, with one or two layers of information on each side.

DVD-ROM

The basic pre-recorded DVD which can support DVD-Video and DVD- Audio formatted data. Its storage options are shown in Table App.Y.1.

Table App.Y.1 DVD capacities

Name Structure Capacity
DVD-5 Single-sided, single layer 4.7 gigabytes
DVD-9 Single-sided, dual layer 8.5 gigabytes
DVD-10 Double-sided, single layer 9.4 gigabytes
DVD-14 Double-sided, one single, ...

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