Abstract: A data recording device according to the present invention includes a virtual device control unit that controls, as a single virtual device, at least a part of a memory area of the first flash memory recording medium and at least a part of a memory area of the second flash memory recording medium; and a file management unit that performs a programming process and an erasing process in parallel, the programming process for programming data in a memory area included in the virtual device and the first flash memory recording medium, and the erasing process for erasing data from a memory area included in the virtual device and the second flash memory recording medium.

Abstract: The present invention relates to a method for managing copyright information on content stored in a storage medium including a protected region, which is accessible after mutual authentication, and a data region, which is accessible without mutual authentication. This method includes: the step of storing, in the protected region, encrypted copyright information obtained by encrypting the copyright information, and the content storing step of storing, in the data region, encrypted information that contains the content, and copyright information conversion information that contains copyright information, which is to be set for the content and corresponds to a format.