This volume defines recording speed of 1x, 2x and 4 times nominal CD speed. (Latest version 3.1, Dec 1998.)
Note: with the publication of Part II volume 2 this document has been renamed from "Orange Book Part II: CD-R, Version 3.1, into "Orange Book Part II: CD-R, Volume 1, Version 3.1.
Volume 2: Multi-Speed
This volume defines 6 disc types with linear recording speeds up to 16x, 20x, 24x, 32x, 40x and 48x nominal CD speed. (Latest version 1.2, April 2002.)
Orange books are only distributed to companies which have a CD information agreement or a relevant (CD-R or CD-RW) license agreement.