Patent ID: 7832639

Claim:
A control method of an information processing device comprising a data recording medium accessor, into which a data recording medium is inserted to access the inserted data recording medium, the data recording medium having a first operation mode and a second operation mode as operation modes, the first operation mode having one or plural communication speeds and the second operation mode having one or plural communication speeds, the control method comprising the steps of: causing a user to select an access type to access the data recording medium inserted into the data recording medium accessor; accessing the data recording medium to execute the access type selected by the user in an operation mode having a faster communication speed out of the first operation mode and the second operation mode; if the access to the data recording medium has failed and if the access type selected by the user is a type in which data is collectively exchanged, selecting a fastest communication speed out of communication speeds at which there is a possibility that data is correctly exchanged in the first operation mode and the second operation mode, and accessing the data recoding medium to execute the access type selected by the user at the selected communication speed in one of the first operation mode and the second operation mode again; and if the access to the data recording medium has failed and if the access type selected by the user is not the type in which data is collectively exchanged, reducing the communication speed in the current operation mode, and accessing the data recording medium to execute the access type selected by the user at the reduced communication speed in the current operation mode again.