|DVD-R||SS SL (1.0)||1||1||12||3.95||3.68|
|DVD-R||SS SL (2.0)||1||1||12||4.70||4.37|
|DVD-RAM||SS SL (1.0)||1||1||12||2.58||2.40|
|DVD-RAM||SS SL (2.0)||1||1||12||4.70||4.37|
|DVD-RAM||DS SL (1.0)||2||2||12||5.16||4.80|
|DVD-RAM||DS SL (2.0)||2||2||12||9.40||8.75*|
The basic types of DVD (12 cm diameter, single-sided or homogeneous double-sided) are referred to by a rough approximation of their capacity in gigabytes. In draft versions of the specification, DVD-5 indeed held five gigabytes, but some parameters were changed later on as explained above, so the capacity decreased. Other formats, those with 8 cm diameter and hybrid variants, acquired similar numeric names with even larger deviation.
The 12 cm type is a standard DVD, and the 8 cm variety is known as a MiniDVD. These are the same sizes as a standard CD and a mini-CD, respectively. The capacity by surface (MiB/cm2) varies from 6.92 MiB/cm2 in the DVD-1 to 18.0 MiB/cm2 in the DVD-18.
As with hard disk drives, in the DVD realm, gigabyte and the symbol GB are usually used in the SI sense (i.e., 109, or 1,000,000,000 bytes). For distinction, gibibyte (with symbol GiB) is used (i.e., 10243 (230), or 1,073,741,824 bytes).
Each DVD sector contains 2,418 bytes of data, 2,048 bytes of which are user data. There is a small difference in storage space between + and - (hyphen) formats:
Read more about this topic: DVD
Other articles related to "capacity":
... The twenty-foot equivalent unit (often TEU or teu) is an inexact unit of cargo capacity often used to describe the capacity of container ships and container terminals ... One TEU represents the cargo capacity of a standard intermodal container, 20 feet (6.1 m) long and 8 feet (2.44 m) wide ...
... The flow and capacity is denoted ... Notice how the network upholds skew symmetry, capacity constraints and flow conservation ... Notice how there is positive residual capacity on some edges where the original capacity is zero, for example for the edge ...
... Foundations are designed to have an adequate load capacity with limited settlement by a geotechnical engineer, and the footing itself may be designed structurally by a structural engineer ... The primary design concerns are settlement and bearing capacity ... that a foundation not be loaded beyond its bearing capacity or the foundation will "fail" ...
... from Poppleton Bar with a 1,250 space capacity ... is set to begin in early 2013 in two phases, offering a 600 space capacity initially ... York council also has plans to extend the Askham Bar site to increase overall capacity as part of its £22 million 'Access York' scheme ...
... the world's third largest mosque), Faisal Mosque has the third largest capacity of accommodating worshipers in its adjoining grounds after the Masjid al-Haram (Grand Mosque) of Mecca, the Al-Masjid ...
Famous quotes containing the word capacity:
“What, then, is the basic difference between todays computer and an intelligent being? It is that the computer can be made to see but not to perceive. What matters here is not that the computer is without consciousness but that thus far it is incapable of the spontaneous grasp of patterna capacity essential to perception and intelligence.”
—Rudolf Arnheim (b. 1904)
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—Jean Baudrillard (b. 1929)