DEVICE AND METHOD FOR ANALYZING CORRELATION BETWEEN NATURAL-WORLD DATA AND EARTHQUAKE DATA, DEVICE AND METHOD FOR MONITING NATURAL-WORLD DATA, AND METHOD OFMONITORING EARTHQUAKE

摘要

A digital recording device (1) is capable of recording record data (Ds), and comprises a medium-exchange-stop switch (8a) for stopping the recording of the record data (Ds) in a recording medium (M) when exchanging the recording medium (M) while recording the record data (Ds), and a record control unit (10) which records succeeding data presence information (CA) related to the record data (DS) being recorded and representing that succeeding record data (Ds) continuous with the record data (Ds) being recorded and to be recorded successively in another recording medium (M) is present in the loaded recording medium (M) in a related manner to the record data (Ds) being recorded when the switch (8a) is operated, successively records the succeeding record data (Ds) in the exchanged recording medium (M), and records preceding data presence information related to the recorded record data (DS) and representing that preceding record data (Ds) continuous with the recorded record data (Ds) is present in the exchanged recording medium (M) in the exchanged recording medium (M).