Patent ID: 7657700

Claim:
A recording device which records desired data onto a recording medium, the recording device comprising: a nonvolatile memory which stores and holds data on a free capacity of the recording medium; and a control unit which controls the recording of the desired data onto the recording medium, wherein the control unit determines status of the free-capacity data stored in the nonvolatile memory, based on the total capacity of the recording medium, when power is turned on, when a result of the determination indicates that a value of the free-capacity data stored in the nonvolatile memory does not exceed a value of the total capacity of the recording medium, the control unit records the desired data onto the recording medium with reference to the free-capacity data stored in the nonvolatile memory, and when the power is turned off, the control unit updates the free-capacity data stored in the nonvolatile memory so as to reduce the value of the free-capacity data stored in the nonvolatile memory by as much as an amount of the desired data recorded onto the recording medium.