In the record media where

摘要

PURPOSE: To improve the operation efficiency of an information recording and reproducing device by shortening the access time of the recording and reproduction of information. ;CONSTITUTION: A magnetooptic disk device 1 is provided with a cache buffer 5 which stores a FAT(file allocation table) 5a, a base information input means 11 inputs and stores base allocation information from a host machine 9 at the time of initialization, and an allocation table transfer means 12 reads one of plural FATs 7a from a (magnetooptic) disk 7 and stores it in the FAT 5a. For reproduction, target allocation data is read out from the FAT 5a and outputted to the host machine 9. For recording, the contents of information are recorded on the disk 7 and an allocation data registration means 13 registers its allocation data in the FAT 5a. A registered data recording means 14 records allocation data (registered data) which ere registered at no-instruction time in plural FATs 7a respectively. A recording medium ejecting means 15 ejects the disk 7 after recording unrecorded registered data in the FAT 7a if the data is present.;COPYRIGHT: (C)1996,JPO