An information processing device (1) includes a plurality of buffers (52) and a file recording processing unit (53). Different pieces of buffer data (BD) are accumulated in the plurality of buffers (52). The file recording processing unit (53) secures two or more consecutive allocation units (AU) included in a recording medium as a ring buffer (54). The file recording processing unit (53) extracts a plurality of pieces of buffer data (BD) each accumulated in one of the plurality of buffers (52) at regular time intervals and records the plurality of pieces of buffer data (BD) in the ring buffer (54) as a salvage file (SF) for data recovery.