DDP is the preferred replication master format over CD-R because it is lower in errors and safer during transport

DDP (Disc Description Protocol) stores the complete CD master as data files. It is preferred over CD-R because it has a lower error rate, cannot be accidentally played (protecting it from damage), supports high-speed glass-master cutting, and handles going past the 74-minute boundary more safely — a long CD-R becomes less reliable near that limit. A CD-R sent to a plant is often transferred to DDP before glass cutting, which can add error.

Examples

A mastering facility delivers a DDP with a verification printout of error metrics; the plant cuts the glass master directly from the DDP at high speed with confidence in data integrity.

Assessment

Name two advantages of DDP over CD-R as a replication master delivery format.