A method of presenting auxiliary data for an interactive recording medium is disclosed. The cluster nodes accept the request information to transfer the same to the next transfer destinations according to the node list or to the master node if the next transfer destinations do not exist. In a transition region from a first trench width to a second trench width, a second series of laser pulses sequentially change spot sizes while gradually changing from the first cutting speed to a second cutting speed. Accordingly, the present invention improves the reliability of unrecoverable line-type temperature sensitive detector.