Patent ID: 7624331
Filing Date: 2009-11-24
Classification: G11B

Abstract:
1. An information reproducing device for reproducing main data from a disc recording medium having a data area in which the main data is recorded and a burst cutting area in which auxiliary information is recorded as a plurality of error correction blocks each having a header added thereto, the header including a content code of an application identification number and a block number, the device comprising: acquisition means for acquiring the auxiliary information recorded in the burst cutting area; reproduction means for reproducing the main data from the data area; demodulation means for demodulating the main data reproduced by the reproduction means; decoding means for decoding the main data demodulated by the demodulation means on the basis of the auxiliary information acquired by the acquisition means; and control means for (1) determining that the auxiliary information arranged in each of said plurality of error correction blocks are the same, when the block numbers of said plurality of error correction blocks are the same, and (2) for determining that the auxiliary information arranged in each of said plurality of error correction blocks are not the same and are recorded over said plurality of error correction blocks, when the block numbers of said plurality of error correction blocks are serial numbers.