Australia
Austria
Belize
Brazil
Canada
China
Finland
France
Germany
Hungary
India
Indus Valley civilization
Ireland
Japan
Kazakhstan
Netherlands
Poland
Spain
Sweden
United Kingdom (including all New Towns under the New Towns Act of 1946 and successive Acts)
United States
... key, which the DVD Consortium kept secret. In order to gain access to the key, a DVD player manufacturer would have to sign a licence agreement with the DVD Consortium ...