Hidden within the video are secret Elvish codes.

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Google has proposed its VP8 codec, a program that codes and decodes video, be a core part of WebM.

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Colorado already has intensive rules aimed at keeping its medical marijuana market in line, including the digital tracking of cannabis, bar codes on every plant, surveillance video and manifests of all legal pot shipments.

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The QR codes link to online text, audio and video about specific locations.

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