Editing Constant linear velocity (section)

== Dimensions ==
[[File:Basic Illustration and mesures of a CD.svg|thumb|Dimensions of a standard-size (12cm diameter) [[optical disc]]]]
In case of a 12&nbsp;cm standard diameter disc, data at the inner edge of the so-called ''program area'', the area containing the data (2.5&nbsp;cm from disc center) is accessed at 2.4 times the angular (rotation) speed of the disc compared to at the outer edge (6&nbsp;cm from disc center).<ref name=OD-Diameter>{{Cite web |url=https://docplayer.es/74808946-Fundamentos-de-hardware.html |title=''FUNDAMENTOS DE HARDWARE.'' – Page 37 of 45 (graphic) |access-date=2020-07-13 |archive-date=2022-02-23 |archive-url=https://web.archive.org/web/20220223102343/https://docplayer.es/74808946-fundamentos-de-hardware.html |url-status=dead }}</ref>

For a [[miniCD|miniature disc]] with a diameter of 8&nbsp;cm (radius of 4&nbsp;cm), the angular (rotation) speed ratio of outer to inner data edge is 1.6 if accessed at a constant linear velocity.

This means that, for example, at a constant linear velocity of ×10, the equivalent [[angular velocity]] of the disc is ×24 while the being accessed at the inner data area, while being ×10 during access at the outermost edge.