Version/Revision number and Updating DVD Book

July 2004

1. Version number (X.Yz) of DVD Book is defined as follows:• The number (X-1).9 means the preliminary version of the new specifications with version number of X.0.
• X digit indicates playback compatibility. Increase of X digit, except the change of (X-1).9 to X.0, is madewhen playback compatibility is not kept. (Revised for clarification)• Increase of Y digit, except the change of (X-1).9 to X.0, means addition to the specifications with the same
number of X digit in the same kind of DVD Format.
The additional specification may have incompatibility with lower version number.
Version-up of Y digit is performed by issuance of Version-up Information.
• z digit means editorial amendment or small amendment to the specifications with the same number of X.Y
in the same kind of DVD Format. The amendment has backward compatibility. These amendments areissued as Supplemental Information.
2. Revision number (A.Bc) of Optional Book is defined as follows: (Added for Option Book)• Change of A digit means the new specifications in the same kind of Optional Book.
• The specifications with the new revision number may have significant degree of development in the same
category of the technology.
For the Optional specifications for high-speed recording, increase of A digit is made when an additional
recording speed is defined.
• Increase of B digit means addition to the specifications with the same number of A digit in the same kindof Optional Book.
For the Optional specifications for high-speed recording, increase of B digit is made when an additional
specification is defined for the recording speed defined by A digit. (for example, addition of write strategy)
Revision-up of B digit is performed by issuance of Revision-up Information.
• c digit means editorial amendment or small amendment to the specifications with the same number ofA.B in the same kind of Optional Book. The amendment has backward compatibility. Theseamendments are issued as Supplemental Information.
3. New edition for updating DVD Book or Optional Book is performed in timely manner to incorporate theVersion-up Information or Revision-up Information and Supplemental Information issued previously for
the DVD Book or Optional Book respectively.
• When Version-up or Revision-up Information had been issued after previous edition (X.Yz) or (A.Bc), thenew edition is published as Version number of X.Y+1 or Revision number of A.B+1.
• When only Supplemental Information had been issued after previous edition (X.Yz) or (A.Bc), the newedition is published as Version number of X.Yz+1 or Revision number of A.Bc+1.
4. To the subscriber of a certain edition, the supplementary documents issued only after publication of theedition are distributed because the documents issued previously are incorporated in the edition.

TimeAn example of updating DVD Book and distributing supplementary documents
Distribution to subscriber of:Issued documents
Ver. 1.0
Ver. 1.01
Ver. 1.1
Ver. 1.11
Book editions & Supplementary documents
thO•Ver. 1.0 (0 editon)O•A-SupplementO•B-Supplement
O•Ver. 1.01 (1st edition of Ver.1.0)(= Ver 1.0 + A+B)
OO
•C-Ver-up Info (1.0 to 1.1)
thO
•Ver. 1.1 (0 edition of Ver. 1.1)(=Ver.1.01+C)
OOO•D-Supplement
stO•Ver. 1.11 (1 editon of Ver. 1.1)(=Ver.1.1+D)End