According to one embodiment, an information recording apparatus for recording, in a free area, first low-quality recorded data having an error rate not less than a first error rate upon finalization of a recording medium, the information recording apparatus includes a reader, a measurement module, a detector, and a recorder. The reader is configured to read recorded data from a recording area of the recording medium. The measurement module is configured to measure an error rate of the recorded data of each predetermined data block. The detector configured to detect the first low-quality recorded data based on an error rate measurement result of the measurement module. The recorder is configured to correct an error in the first low-quality recorded data, and record error-corrected recorded data corresponding to the first low-quality recorded data at a spare recording position of the free area of the recording medium.