Disc recording apparatus for recording data in units of a full cluster

摘要

PCT No. PCT/JP94/00224 Sec. 371 Date Oct. 13, 1994 Sec. 102(e) Date Oct. 13, 1994 PCT Filed Feb. 15, 1994 PCT Pub. No. WO94/19802 PCT Pub. Date Sep. 1, 1994If data stored in RAM (31) is of a data volume short of one cluster, deficit data is read out from a magneto-optical disc (22) to provide a data volume corresponding to one cluster. Data recorded on the magneto-optical disc (22) is rewritten by means of the RAM (31) on the cluster basis under control of a system controller (29).