The specification for audio CD's and audio CD-systems. The specification was developed by Philips and Sony. There are also orange book, yellow book, and blue book standards. Due to the evaluation of each package, the RMA process is costly, and reworked software packages will typically cost the same as if it had been manufactured from scratch. CD's are frequently inserted into plain sleeves.
Standard sleeves are tyvek or paper with or without windows.
Effective use of SPC will bring the quality level and the through-put up. The specification was developed by Philips and Sony. There are also orange book, red book, and blue book standards.