MEMORY CONTROLLER, NONVOLATILE STORAGE DEVICE, AND NONVOLATILE STORAGE DEVICE SYSTEM

A memory controller, a nonvolatile storage device and a nonvolatile storage device system are provided, in which the matching check between content data and meta data can be simplified, a starting time can be shortened, and further, a host device side can provide users with a common GUI without being conscious of the Usage Rule including an encryption method for copyright protection and a copyright protection method and a content management. A write status holding unit that holds write status information to identify the content data being written, and a content management unit that manages the content data and the meta data are included. The content management unit eliminates mismatch between the content data and the meta data based on the write status information. Further, a GUI script generating unit is included which generates a script describing the screen display contents in accordance with a request from the host device for the content data.