Patent ID: 6912191
Filing Date: 2005-06-28
Classification: G11B

Abstract:
1. A disc recording/reproducing device adapted for, with respect to a disc on which a unit cluster having a predetermined number 2N (where N is a positive integer) of sectors as a set is formed and on which a sector address corresponding to each sector and a cluster address corresponding each cluster are modulated in a predetermined manner and recorded in advance, performing recording and reproduction using N sectors as a unit, which is obtained by bisecting the unit cluster, the disc recording/reproducing device comprising: reproduction means for reproducing the cluster address and the sector address modulated in the predetermined manner and recorded in advance, from the disc; identifier generation means for generating an identifier that identifies the former N sectors or the latter N sectors obtained by bisecting the cluster unit, as a recording unit used for recording data; recording means for blocking inputted data into plural blocks and recording the blocked data within the N-sector recording unit; address generation means for generating an address corresponding to the plural blocks each that are formed in the N-sector recording unit; and conversion means for converting the cluster address and the sector address reproduced by the reproducing means to an address unit including the identifier generated by the identifier generation means, the address generated by the address generation means and a recording block address generated on the basis of the cluster address; the address unit obtained by conversion by the conversion means being recorded for the plural blocks each, by the recording means.