Patent ID: 7975206

Claim:
An information recording device for recording main data onto a disc recording medium having a data area for recording the main data and a burst cutting area for recording auxiliary information, the device comprising: an acquisition unit configured to acquire the auxiliary information recorded in the burst cutting area, the auxiliary information being blocked to generate error correction blocks using a Reed-Solomon error correcting code that has a same code length of 248 bytes, data length of 216 bytes and distance of 33 bytes of an error correction code of the main data recorded in the data area, the auxiliary information having a length of 16 bytes which is smaller than the data length of 216 bytes of the Reed-Solomon error correcting code and fixed data filling the remaining length of 200 bytes of an error correction block; the acquisition unit configured to acquire the main data; a processor configured to encrypt the acquired main data on the basis of the acquired auxiliary information; a modulator configured to modulate the encrypted main data; and a laser configured to record the modulated main data into the data area on the data recording medium.