| 摘要 |
A method and system ( 200 ) marks ( 170 ) a copy of copy-protected material ( 202 ) with a geographic marker based on a geographic region of the source of the copy. Conforming rendering devices are configured to prevent ( 140 ) the rendering of copy protected material ( 201 ) that have geographic markers that differ ( 120 ) from the geographic region associated with the rendering device. Any of a variety of techniques are used to determine the geographic location of the rendering device ( 200 ), including the geographic location of the rendering device that produces the original copy. Preferably, each copy ( 202 ) of the copy-protected material also includes an identifier of the rendering device ( 200 ) that produced the copy, and subsequent renderings of copies by the same rendering device are permitted ( 130 ) regardless of geographic locale, thereby allowing for the relocation of a consumer's rendering devices and libraries of material.
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