Black Book (Non-Standard Disc Format)

The Black Book is the unofficial designation of an optical disc that defies all of the official standards for CD-ROM, DVD, HD DVD and Blu-ray Discs. Most video games stored on discs and discs using DRM are considered black book format.

Black Book disc examples:

Red Book (CD Digital Audio)  · Yellow Book (CD-ROM and CD-ROM XA)  · Orange Book (CD-R and CD-RW)  · White Book (Video CD)  · Blue Book (Enhanced CD, CD+G and CD-Plus)  · Beige Book (Photo CD)  · Green Book (CD-i standard)
Purple Book (DDCD)  · Scarlet Book (Super Audio CD)  · Black Book (Non-Standard Disc Format)