MFDigital CD DVD Information Library
Tuesday, June 15, 2004
CD Manufacturing - Introduction to Premastering
Introduction to Premastering

Premastering of both audio CD and CD-ROM data is often needed to convert the source data to a format suitable for glass mastering.
Audio premastering starts with digital audio (eg on U-matic, DAT or CD-R) and includes:

PQ encoding (Table of Contents)
Editing and Compilation
Sample rate conversion
CD-ROM premastering depends on the final format but can include:

Formatting to ISO 9660 or HFS from individual files on tape or hard disk
Creating a disc image for a CD EXTRA disc from individual audio and data
Recording premastered data to CD-R for testing prior to mastering
Duplicating small runs of discs on CD-R