Disc recording/reproducing apparatus and disc recording/reproducing method

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 added to a linking sector longer than an interleave length 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;
• 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 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.

A disc recording/reproducing method 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 method comprising:

• a step of reproducing the cluster address and the sector address modulated in the predetermined manner and recorded in advance, from the disc;
• a step of 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;
• a step of generating an address corresponding to the plural blocks each that are formed in the N-sector recording unit;
• a step of converting the reproduced cluster address and sector address to an address unit including the generated identifier, the generated address and a recording block address generated on the basis of the cluster address;
• and
• a step of blocking inputted data into plural blocks, then recording the blocked data in the N-sector recording unit, and recording the address unit obtained by the conversion for the plural blocks each.

A disc recording/reproducing method 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 added to a linking sector longer than an interleave length 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 method comprising:

• a step of reproducing the cluster address and the sector address modulated in the predetermined manner and recorded in advance, from the disc;
• a step of generating an address corresponding to the plural blocks each that are formed in the N-sector recording unit;
• a step of converting the reproduced cluster address and sector address to an address unit including the generated address and a recording block address generated on the basis of the cluster address;
• and
• a step of blocking inputted data into plural blocks, then recording the blocked data within the N-sector recording unit, and recording the address unit obtained by the conversion for the plural blocks each.