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Home › Validating keying material by using a validation area of read-only media to prevent playback of unauthorized copies of content stored on the media

Validating keying material by using a validation area of read-only media to prevent playback of unauthorized copies of content stored on the media

US Patent 6957343 · Granted Oct 18, 2005

Estimated economic value: $19,273,000 ⓘ

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