CD kwaliteit

Posted on Friday, Jul 26 2002 @ 14:43 CEST by Thomas De Maesschalck
Op CD-R Info is er een uitgebreid artikel verschenen over kwaliteit bij cd's en hoe leesfouten kunnen optreden.

Ook wordt er uitgebreid gesproken over error-correctie mechanismen.

Het artikel is te vinden op http://www.cdrinfo.com/Sections/Articles/Specific.asp?ArticleHeadline=Writing+Quality&index=0

Hieronder nog een paar foto's gemaakt met een Atomic Force Microscoop :


In Figure a, the pit structure is uniform and replicates the stamper accurately.

In Figure b, the pits are locally deformed with polycarbonate piled up or smeared toward the perimeter of the disk. This deformation is manifested as visible staining and can lead to high block error rates depending on degree.

In Figure c, the polymer surface is severely distorted and some of the pits are barely recognizable



About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.



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