Data recorders.

摘要

A data recorder (1) includes a recording unit (6, 9, 13) for recording data having a predetermined data format and a frame address in a recording medium in units of frames each consisting of predetermined amount of data, and for forming a plurality of PARTITIONS each consisting of a plurality of data areas in which different types of data are recorded during recording. The data recorder (1) performs initialization of a length at least one of the PARTITIONS.