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Technical Information

Disc Identification Method
April 1, 2002
Outline of Disc Identification Method

In the Disc Identification Method, a unique code is assigned to each media manufacturer and their media varieties. By handling this code appropriately each drive can give optimized writing condition for every disc. By doing this better interchangeability between CD-R discs and CD-R drives can be attained.
The Disc Identification Method is specified and managed by TWG1 of the CDs21 Solutions( formerly Orange Forum PWG1). Application for a new code is accepted, which is requested by a CD-R licensee.
Please contact TWG1 if you have an inquiry and/or question on the Disc ID Method.
The contact information for registration or questions is provided below.

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(member's only)
Contact to:
Organization : CDs21 Solutions Technical Working Group 1 (TWG1)
E-mail address :
* This address is linked to TWG1 Chair's own address.