O'Reilly logo

An Introduction to Digital Multimedia, 2nd Edition by Savage

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Image Appendix A

CD Data Format and Disc Standards

Image

CD Data Format

Compact discs use a special format to encode digital data. There is not a direct correlation between a bit and a pit in optical storage. Optical drive optics are not sufficiently precise to read and interpret each individual pit as a bit. Laser beams are focused into a spot approximately 1 micron in diameter so they can miss pits that are 0.83 microns wide. The solution was to devise a coding scheme that bundles user data with error correction and synchronization data into a symbol called ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required