When having established communication with a data processing apparatus, a first apparatus determines whether or not to generate authentication information based on identification information about the data processing apparatus. A plurality of encryption keys is used for encrypting or decrypting a plurality of clip files containing content data in such a way that each of the plurality of encryption keys is used for encrypting or decrypting the whole or partial data of each of the plurality of clip files. A protein matrix is formed from the platelet-rich blood product composition to entrap growth factors. Storage can include delineating related electronic data across rows the table and types of data across columns of a row. A processor then adjusts the media advancement mechanism to correct the identified media advancement error. The method includes steps of attaching a double sided acrylic adhesive film to a composite plate.