ocr: As with phonograph records, a master disc must be produced before actual production of individual CDs can begin.Usually the master is a glass disc from which up to seven nickel negatives are made. These negatives in turn provide the basis for the production of up to seven master discs from which the actual disc stampers are made. From each disc stamper roughly 10.000 individual CDS can be produced. What CD- ROM are best for becomes clear: the rapid preparation of large quantities of information for mass distribution. Although this magnitude of production will be required relatively seldom, it ...
(.png)
