Patent ID: 7747906

Claim:
A method of recording user data on a recordable optical disc including a user area having a plurality of physical blocks and a management information area for storing a space bit map used to manage the user area, the method comprising: recording the user data in each physical block in the user area; recording the space bit map in the management information area; and successively executing integrity verification processing for checking whether recording status information indicating a recording state of each data is consistent with the recording state in physical blocks on the recordable optical disc for each recording status information, the recording status information being included in the space bit map and also being provided for each of the physical blocks, wherein: the space bit map includes status information for determining whether the integrity verification processing is required; when the status information is read out to determine whether the integrity verification processing is required and, when the integrity verification processing is required, the integrity verification processing is performed for recording state information not having been subjected to the integrity verification processing among the recording state information included in the space bit map, and the integrity verification processing is not performed for the recording state information already having been subjected to the integrity verification processing, the status information includes verification completed information indicating that the integrity verification processing has been completed for all recording state information blocks, verification executing information indicating that the integrity verification processing for the space bit map integrity restoration is being executed, and verification-required information indicating that the integrity verification processing is required.