Patent ID: 7808862

Claim:
An optical disc device comprising: a recording section configured to record recording information transferred from a host computer in an optical disc; a reproducing section configured to reproduce the information recorded in the optical disc; a storage section configured to store cache information Po−n to Po+n obtained by reproducing the optical disc between a preceding position Po−n and succeeding position Po+n by the reproducing section while a recording start position Po is defined as a reference when recording of the recording information is started; and a processing section configured to compare reproduction information obtained by reproducing the optical disc between the preceding position Po−n and the position Po+n again, the cache information stored in the storage section, and the recording information, and then to determine whether recording has been normally performed on the optical disc when recording of the recording information terminates, wherein the processing section is configured to determine whether the recording has been normally performed on the optical disc by comparing the reproduction information and the cache information between the preceding position Po−n and the recording start position Po, comparing the reproduction information and the recording information between the recording start position Po and a recording end position Pe, and comparing the reproduction information and the cache information between the recording end position Pe and the succeeding position Po+n, when the recording end position Pe is positioned between the recording start position Po and the succeeding position Po+n.