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    CD kwaliteit

    Posted on Friday, July 26 2002 @ 14:43:33 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




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