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Encyclopedia > Shaped CD
An audio CD in the shape of a heart.

A shaped CD is a non-circular compact disc. Examples include CDs in the shape of a business card, a hockey rink, a star, a map of a country, and more. These disks are usually made for marketing purposes and are properly read by most CD-ROM drives (and audio CD players, although custom-shaped CDs tend to contain data). Many companies exist that sell CDs with custom shapes. Image File history File links Metadata Size of this preview: 551 × 599 pixelsFull resolution (631 × 686 pixel, file size: 640 KB, MIME type: image/jpeg) author:Yury Chernavsky I, the copyright holder of this work, hereby grant the permission to copy, distribute and/or modify this document under the terms... Image File history File links Metadata Size of this preview: 551 × 599 pixelsFull resolution (631 × 686 pixel, file size: 640 KB, MIME type: image/jpeg) author:Yury Chernavsky I, the copyright holder of this work, hereby grant the permission to copy, distribute and/or modify this document under the terms... A Compact Disc or CD is an optical disc used to store digital data, originally developed for storing digital audio. ...


Unlike Mini CDs, which are smaller, but still circular versions of normal CDs, custom CDs can be any number of shapes, even more complicated shapes like gears with dozens of teeth, but are generally smooth and with rounded edges, such as ovals, rounded rectangles. A logo can be printed on a shaped CD, in the same way common audio CDs and CD-ROMs are labeled. MiniCDs are smaller form-factor CDs Amongst the various formats are the CD single, an 80-mm disc. ...

Contents

History

The Flaming Lips released a CD single entitled "This Here Giraffe" on the world's first ever shaped CD. It was in the shape of an 8-pointed star.[1] The Flaming Lips (formed in Oklahoma City, Oklahoma in 1983) are a Grammy-award winning[1] American alternative rock band. ... STAR is an acronym for: Organizations Society of Ticket Agents and Retailers], the self-regulatory body for the entertainment ticket industry in the UK. Society for Telescopy, Astronomy, and Radio, a non-profit New Jersey astronomy club. ...

One shape of business-card CD. Also called a "hockey-rink" CD.

Image File history File links This is a lossless scalable vector image. ... Image File history File links This is a lossless scalable vector image. ...

Compatibility

Shaped CDs are not compatible with all CD players — they will work with most machines in which the disc is inserted by manually clipping it onto a central spindle (the mechanism used in virtually all portable CD players), but may not work in drives which load the disc from a tray, or those which pull the disc into a slot. They can even get stuck in these players.


Assymmetric discs

Irregularly shaped, non-rotationally symmetric discs with an offset center of mass may also cause damaging vibration if played in computer CD drives, which can operate at a much higher rotational velocity than stand-alone audio CD players. Some irregularly shaped discs will work with tray loading CD drives if they include a circular ridge on their underside which centers them on the part of the tray designed to hold 80 mm CDs, if the tray has such a feature. The triskelion appearing on the Isle of Man flag. ... In physics, the center of mass of a system of particles is a specific point at which, for many purposes, the systems mass behaves as if it were concentrated. ... Rotational speed (sometimes called speed of revolution) indicates, for example, how fast a motor is running. ...


See also

A bootable business card is a CD-ROM that has been cut, pressed, or molded to the size and shape of a business card (designed to fit in your wallet or pocket). ...

References

  1. ^ The Flaming Lips, This Here Giraffe — Star-shaped CD label

 
 

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