InterOp vs SMPTE DCP?

InterOp and SMPTE are different standards for DCP. They are not cross-compatible. Interop was deployed in 2001 and SMPTE in 2009. SMPTE allows more flexibility on mastering due to the inclusion of newer audio, frame rate, and other formats, but the majority of the world was deployed on Interop systems during the initial rollout and thus both formats have their advantages.

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