Driving recorder

A driving recorder comprising:

• a detection device that detects a situation of a vehicle,
• a situation data receiving section that receives situation data from the detection device and temporarily stores the situation data in a temporary data storage section specified in a predetermined area of a memory,
• a data administration section that determines the situation of the vehicle detected by the detection device, and when a plurality of contents indicated by the received situation data satisfy a previously specified given condition, transfers a part or all of the situation data during a certain time period before and after a time when the condition is satisfied from the temporary data storage section to a situation data storage section specified in another predetermined area of the memory,
• a judgment criterion parameter storage section that stores data of a parameter to be a criterion for transferring the situation data from the temporary date storage section to the situation data storage section in the data administration section,
• an alert device that informs the driver that the situation is judged to exceed the judgment criterion by the data administration section, and
• an input device that inputs whether or not the judgment by the data administration section is appropriate,
• wherein the judgment criterion parameter storage section updates the data of the parameter based on whether or not the input is made by the input device, wherein the input device enables a driver to enter data indicating the judgment by the data administration section is not appropriate and the data administration section is enabled to alter one or more parameters of the judgment criterion parameters storage section in response to the data entered by the input device.