Patent ID: 7856518

Claim:
An information processing device comprising: a data record medium access unit into which a data record medium, which has a first operation mode having one or a plurality of communication rates and a second operation mode having one or a plurality of communication rates as operation modes and has a first sub-operation mode having one or a plurality of communication rates and a second sub-operation mode having one or a plurality of communication rates as sub-operation modes of the second operation mode, is inserted and which gains access to the inserted data record medium, wherein it is necessary to stop power supply to the data record medium when the access to the data record medium is switched between the first operation mode and the second operation mode, but it is not necessary to stop the power supply to the data record medium when the access to the data record medium is switched between the first sub-operation mode and the second sub-operation mode; a selection unit which allows a user to select a type of access to the data record medium inserted into the data record medium access unit; a first access unit which gains the type of access selected through the selection unit at a communication rate in an operation mode, wherein the communication rate is set to a fastest of rates of the first operation mode, the first sub-operation mode of the second operation mode, and the second sub-operation mode of the second operation mode; a second access unit which gains the type of access to the data record medium which is selected through the selection unit at the communication rate, when the access of the first access unit fails, wherein the communication rate is set to a greater of communication rates at which normal data exchange is possible in the first operation mode and the second operation mode in a case where the access selected by the user through the selection unit is a type of access in which data are all exchanged; and a third access unit which gains the type of access to the data record medium which is selected through the selection unit, when the access of the first access unit fails, by reducing the communication rate without performing switching between the first operation mode and the second operation mode in a case where the type of access selected by the selection unit is not a type of access in which data are all exchanged.