Interoperable Digital Rights Management

An article comprising:

• a storage medium comprising machine-readable instructions stored thereon which, when executed, are adapted to cause a computing platform to:
• select at least one DRM format from among a plurality of DRM formats associated with a plurality of DRM envelopes associated with a memory device;
• and
• access one of said plurality of DRM envelopes associated with said selected DRM format to obtain a content access key for use in decrypting a media content portion associated with said memory device.

An apparatus comprising:

• one or more output devices comprising a display;
• and
• a computing platform, said computing platform being adapted to:
• select a DRM format from among a plurality of DRM formats associated with a plurality of DRM envelopes associated with a storage medium;
• access at least one of said plurality of DRM envelopes associated with said selected DRM format to obtain a content access key;
• decrypt said media content portion according to said content access key to obtain access to a media content portion associated with said storage medium;
• and
• render a presentation through said display based, at least in part, on said decrypted media content portion.

A method comprising:

• storing a media content portion on a storage medium;
• and
• storing a plurality of digital rights management (DRM) envelopes on said storage medium with said media content portion, said plurality of DRM envelopes being associated with a plurality of distinct DRM formats,
• wherein media content portion is accessible by access to one of said DRM envelopes.

A method comprising:

• accessing a digital rights management (DRM) envelope in an associated storage medium to obtain a primary content access key and a secondary content access key, said DRM envelope being associated with a DRM format;
• decrypting a first portion of media content in said storage medium according to said primary content access key;
• and
• decrypting a second portion of said media content according to said secondary content access key to impart a marking in said decrypted first portion of said media content identifying said DRM format.

An article comprising:

• a storage medium, said storage medium having associated therewith:
• a media content portion;
• and
• at least one digital rights management (DRM) envelope associated with a DRM format, said DRM envelope comprising a primary content access key for decrypting a first portion of said media content and a secondary content access key for decrypting a second portion of said media content,
• wherein said decrypted second portion of said media content is adaptable to impart a marking to said decrypted first portion identifying said DRM format.

An article comprising:

• a storage medium, said storage medium comprising machine-readable instructions stored thereon which, when executed, are adapted to cause a computing platform to:
• access a digital rights management (DRM) envelope in an associated storage medium to obtain a primary content access key and a secondary content access key, said DRM envelope being associated with a DRM format;
• decrypt a first portion of media content in said storage medium according to said primary content access key;
• and
• decrypt a second portion of said media content according to said secondary content access key to impart a marking in said decrypted first portion identifying said DRM format.

A method comprising:

• presenting a product serial number to obtain an encryption key associated with a digital rights management (DRM) format;
• decrypting a DRM envelope stored on a memory according to said encryption key to obtain a content access key;
• and
• decrypting said media content according to said content access key.

An article comprising:

• a storage medium, said storage medium comprising machine-readable instructions stored thereon which, when executed, are adapted to cause a computing platform to:
• associate a product serial number with a digital rights management (DRM) format;
• and
• provide an encryption key for accessing a DRM envelope stored on a memory, said DRM envelope comprising a content access key for decrypting media content stored on said memory.