CD Ttech

The Compact Disc is undoubtedly the most revolutionary

medium of recent times. While the latest generation of optical

media offer many extra benefits such as higher data density,

faster access times etc. they are really just refinements of the

If you are new to CD technology, a good understanding of the

basic principles of the Compact Disc is essential and provides a

firm foundation to allow you understand derivative

technologies as CD-R, Super-CD and Minidisc.

In addition to an overview of CD technology we place

particular emphasis on the standard CD tests and their

implications in terms of disc playability across a broad

spectrum of applications and hardware.

The development of the compact disc was due principally to a

collaboration of two international companies, Philips and

Sony. Philips had been working on an optical storage medium,

The result of this work is embodied in the Red Book; the de-facto

been working on implementing a class of digital error

correction methods in LSI logic. With such capability available in real time, together with advances in numerical computing

and digital filtering, the various collaborated to develop a

Some topics in this essay:
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