The Austrian pressing plant DADC Austria was re-branded Sony DADC in approximately 2000, at which time Sony DADC first appeared in the matrix of CDs manufactured there. The same happened in the US in August 2005 when Digital Audio Disc Corporation changed its name to Sony DADC US Inc.
In 2011, Sony DADC's manufacturing facility in Pitman, NJ was closed, leaving only the facility in Terre Haute, IN operational in the US. It was announced in January 2018 that the Terre Haute facility was moving away from CD, DVD and Blu-Ray production due to the changing market, but would continue to manufacture PlayStation discs and new formats such as Ultra HD discs. This ended Sony DADC's CD manufacturing activity in North America.
Please only credit Sony DADC if it is specifically mentioned on the release or properly identified as outlined below. If in doubt, please ask in the help forums.
The following prefixes may appear on releases manufactured by Sony DADC in the USA after August 2005.
DIDC, DIDP, DIDX, DIDY, DIDZ
Before August 2005 these prefixes appeared on the artwork or in the matrix of releases manufactured by DADC
About Sony DADC matrix/LCCN numbers:
Sony DADC releases manufactured in Austria usually have matrices in the following pattern:
Sony DADC Axxxxxxxxxx-yyzz BB CC or
Sony Music Sxxxxxxxxxx-yyzz BB CC
- For CD releases, yy indicates the disc number (always 01 for single-disc releases; 02 and onwards are used for multi-disc releases), while zz indicates the number of discs in the release (again, always 01 for single-disc releases). DVDs do not seem to use the same numbering for the yyzz part however.
- BB is a two digit number, usually between 11-25. The second digit is the same as the last digit of the mastering SID code (IFPI L55x).
- CC is etched into the matrix ring, and is usually A1, A01, A00, B1, etc.
When entering Sony DADC matrix numbers into LCCN, ONLY the "Axxxxxxxxxx-yyzz" / "Sxxxxxxxxxx-yyzz" part of the string should be entered. An example of how to correctly enter the Sony DADC number can be found on Murkrat - MurkRat.