MFDigital CD DVD Information Library: CD Manufacturing > Quality Assurance

MFDigital CD DVD Information Library

Thursday, June 24, 2004

CD Manufacturing > Quality Assurance > QA in Replication

Quality Assurance in Replication

To ensure that discs meet the necessary standards, sample CDs are tested at the start of all production runs. Measurements include:

Analysis of the standard signals while the disc is playing.
Measurement of physical attributes such as thickness and center hole diameter.
Frequent full analyzer tests to ensure that all electrical and physical parameters are maintained.

All discs replicated are subject to automatic inspection before and after printing including:

Evaluation of any visual defect such as pin holes, cold marks, bubbles and dimples.
Automatic checks during printing to ensure that all discs being printed carry the correct catalogue number.

- posted by J @ 7:26 AM

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