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Publication date
Application filed by Benq CorpfiledCriticalBenq Corp
Priority to TW093119451ApriorityCriticalpatent/TW200601318A/en
Publication of TW200601318ApublicationCriticalpatent/TW200601318A/en
Optical Record Carriers And Manufacture Thereof
(AREA)
Braking Arrangements
(AREA)
Abstract
A compact disc. The compact disc comprises a curved surface, a first annular surface and an second annular surface parallel thereto. The curved surface connects the first and second annular surfaces and projects outward along the radial direction of the first and second annular surfaces.