There is provided a recording and reproducing apparatus for recording and reproducing data on and from a recording medium with a sequential access system. The apparatus includes a connection unit configured to connect a network, a processor configured to mount a disk apparatus, to reproduce data from the recording medium, to convert the reproduced data into files, to write the files in the disk apparatus based on receiving first information via a network that instructs the recording and reproducing apparatus to import data recorded on the recording medium into the disk apparatus, to read the files from the disk apparatus, and to record data converted from the read files on the recording medium based on receiving second information via a network that instructs the recording and reproducing apparatus to write the files in the disk apparatus on the recording medium.