To provide a file input/output regulation control system and the like for preventing storage data from being lost.

The file input/output regulation control system 10 is provided with a file processing delay detection part 40 detecting a delay condition of file recording, and a file processing decision part 30, which determines whether there is a file recorded with a large delay based on the delay condition and returns a request rejection response to a file reproduction request from an external device 80 when determined that a certain file is recorded with a large delay.