Patent ID: 7634600

Claim:
An emulation system of an electronic apparatus including a slot in which a first storage medium is loaded and which executes file management by an operating system, the emulation system comprising: a discrimination unit configured to analyze a file system of the first storage medium loaded in the slot, and to discriminate whether or not an image file containing duplicate contents of a second storage medium different in kind from the first storage medium is stored in the first storage medium, the image file being named based on a predetermined naming rule; a correspondence table creation unit configured to create an address correspondence table to associate, based on an output of the discrimination unit, first address information indicating a location on the first storage medium with second address information indicating a corresponding location on the image file, if the image file is stored in the first storage medium; an first emulation unit configured to convert the address information on the second storage medium received from the operating system into the address information on the first storage medium in accordance with the address correspondence table, and to execute an access to the second storage medium with an access to the image file; and a second emulation unit configured to allow the operating system to recognize the first storage medium loaded in the slot as a third storage medium different in kind from the first storage medium and the second storage medium by transferring the contents of the filing system of the first storage medium to the operating system as those of the third storage medium, the first storage medium being incapable of being handled by the operating system and the third storage medium being capable of being handled by the operating system.