Data management

摘要

A system is provided for managing data on at least a randomly accessible recording medium comprising a data area in which recordal data is recorded in one or more variable length recording blocks by file and a management data area in which file entries and record entries for each recording block of the files are recorded. The file entries include name data showing names of the recordal data recorded in the files and identification data showing the record entries of the first recording blocks in which the recordal data are recorded. The record entries including head position data showing the heads of the recording blocks, link data showing recording blocks in which continuations of the recordal data are recorded, and recording length data showing the recording lengths of the recording blocks.