Patent ID: 8040767

Claim:
An optical disc drive for playing data from a loaded optical disc medium according to a processing command issued from a host device, comprising an optical head, a controller and an interface, the controller is configured to: judge whether the processing command issued from the host device has been received and whether a reset command issued from the host device has been received, the reset command being transmitted in a case where the host device judges a time-out of a processing of the processing command; measure a time between a reception of the processing command and a reception of the reset command in a case where the processing of the received processing command does not end until the reception of the reset command; determine a processing time limit shorter than the measured time; and in a case where the processing of the received processing command does not end until the decided processing time limit has elapsed after the reception of the processing command, stop the processing of the processing command and notify that the processing of the processing command has been stopped to the host device.