Avsar Emaye San. Tic A.S DVD Copy

DVD disc

types

First side

Second side

Total

capacity

First layer

capacity

Second layer

capacity

First layer

capacity

Second layer

capacity

DVD-5

4.7 Gb

DVD-9

4.3 Gb

8.6 Gb

DVD-10

4.7 Gb

9.4 Gb

DVD-14

4.3 Gb

4.7 Gb

13.3 Gb

DVD-18

4.3 Gb

17.2 Gb

DVD-5 - single sided, single layer (disc capacity about 4.7 Gb, the working surface of such a disc is

situated on one side of it and consists of one layer only);

DVD-9 - single sided, double layer (disc capacity about 8.6 Gb, the working surface of such a disc is

situated on one side of it and consists of two layers about 4.3 Gb each);

DVD-10 - double sided, single layer on both sides (disc capacity about 9.4 Gb, the working surfaces of

such a disc are situated on both its sides and either consists of one layer about 4.7 Gb);

DVD-14 - double sided, double layer on one side and single layer on the other side (disc capacity

about 13.3 Gb, the working surfaces of such a disc are situated on both its sides and consist of two

layers about 4.3 Gb each on one side and one layer about 4.7 Gb on the other side);

DVD-18 - double sided, double layer on both sides (disc capacity about 17.2 Gb, the working surfaces

of such a disc are situated on both its sides and either consists of two layers about 4.3 Gb each).

Note : the DVD capacity is measured in the so called decimal gigabytes (one gigabyte is equal to

1000 megabytes). The real size of the DVDs is smaller when measured in the so called computer

gigabytes or gibibytes (one gigabyte is equal to 1024 megabytes).

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The disc medium can be:

DVD-ROM (read only, industrially manufactured)

A factory-made DVD that is manufactured by a press. The DVD specification Version 1.0 was

announced in 1995 and finalized in September 1996. "DVD" was originally an acronym for "digital

video disc"; some members of the DVD Forum believe that it should stand for "digital versatile disc", to

indicate its potential for non-video applications. Toshiba adheres to the interpretation of "digital

versatile disc". The DVD Forum never reached a consensus on the matter, however, and so today the

official name of the format is simply "DVD"; the letters do not "officially" stand for anything.

DVD-R (R = Recordable once)

A DVD-Recordable or DVD-R is an optical disc with a larger storage capacity than a CD-R, typically 4.7

GB instead of 700 Mb, although the capacity of the original standard was 3.95 Gb. The DVD-R format

was developed by Pioneer in autumn of 1997. It is supported by most DVD players, and is approved by

the DVD Forum. A DVD-R can be written to only once.

DVD-RW (RW = ReWritable)

A DVD-RW is a rewritable optical disc with equal storage capacity to a DVD-R, typically 4.7 GB. The

format was developed by Pioneer in November 1999 and has been approved by the DVD Forum. Unlike