A method for disposing of a data recording means that disposes of the medium efficiently with high security, achieving recycling, is presented. The method includes the steps of putting at least one medium to be disposed of and selected from optical recording media 2a, 2b and magnetic recording media 2c to 2f, in which data is recorded, into a recovery box 95 and sealing the box 95 with a sealing means 97, delivering the sealed box 95 to an operation site 8, and destroying and erasing recorded data by means of an optical-data destroying device and a magnetic-data erasing device, with the recovery box 95 maintaining sealed status.