Method of recording and reproducing sample data to/from a recording medium and sample data containing recording medium
First Claim
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1. A method of reproducing digital content protected by Digital Right Management (DRM) information authorizing a reproduction of the digital content, comprising:
- determining whether sample data corresponding to the digital content is present based on first indication information indicating a presence of the sample data, wherein the sample data is associated with encrypted digital data and is not protected;
if the sample data is determined to be present, reading second indication information corresponding to attribute information of the sample data; and
reproducing the sample data based on the second indication information without considering the DRM information, whereinthe first indication information is inserted into an information field referring to the digital content, andthe second indication information includes at least one of location information, identification information and management information.
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Abstract
The present invention provides according to an embodiment a method of reproducing content, comprising the steps of: (a) receiving a digital content from an external source, the digital content protected by Digital Right Management (DRM) information, the DRM information authorizing a reproduction of the digital content; (b) requesting the DRM information to an external source based on URL (Uniform Resource Locator) information in order to normally reproduce the digital content; and (c) reproducing the digital content based on the DRM information.
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Citations
12 Claims
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1. A method of reproducing digital content protected by Digital Right Management (DRM) information authorizing a reproduction of the digital content, comprising:
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determining whether sample data corresponding to the digital content is present based on first indication information indicating a presence of the sample data, wherein the sample data is associated with encrypted digital data and is not protected; if the sample data is determined to be present, reading second indication information corresponding to attribute information of the sample data; and reproducing the sample data based on the second indication information without considering the DRM information, wherein the first indication information is inserted into an information field referring to the digital content, and the second indication information includes at least one of location information, identification information and management information. - View Dependent Claims (2, 3, 4)
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5. An apparatus for reproducing digital content protected by Digital Right Management (DRM) information authorizing a reproduction of the digital content, comprising:
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a controller configured to determine whether sample data corresponding to the digital content is present based on first indication information indicating a presence of the sample data, wherein the sample data is associated with encrypted digital data and is not protected; if the sample data is determined to be present, read second indication information corresponding to attribute information of the sample data; and reproduce the sample data based on the second indication information without considering the DRM information, wherein the first indication information is inserted into an information field referring to the digital content, and the second indication information includes one of location information, identification information and management information. - View Dependent Claims (6, 7, 8, 9)
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10. A computer readable storage medium having a data structure, comprising:
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digital content protected by Digital Right Management (DRM) information authorizing a reproduction of the digital content; sample data associated with the digital content and not protected by the DRM information; first indication information indicating a presence of the sample data; and second indication information corresponding to attribute information of the sample data, wherein the first indication information is inserted into an information field referring to the digital content, and the second indication information includes at least one of location information, identification information and management information. - View Dependent Claims (11, 12)
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Specification