Method and System for Ensuring Sequential Playback of Digital Media

  • US 20100082970A1
  • Filed: 09/30/2008
  • Published: 04/01/2010
  • Est. Priority Date: 09/30/2008
  • Status: Active Grant
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First Claim
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1. A method for requiring sequential playback of a digital media asset, said method comprising:

  • (a) accessing decryption instructions associated with the digital media asset;

    (b) accessing a first segment of the digital media asset;

    (c) decrypting the first segment of the digital media asset with a decryption key;

    (d) decoding the decrypted first segment to obtain decoded media data;

    (e) outputting the decoded media data pertaining to the decrypted first segment to an output device;

    (f) determining a sequential key for a next segment of the digital media asset based on at least a portion of the decoded media data pertaining to the decrypted first segment;

    (g) accessing the next segment of the digital media asset; and

    (h) decrypting the next segment of the digital media asset based on at least the sequential key.

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