Disk cartridge for storing disk-shaped recording media

A disk cartridge comprising:

• a case body in which a plurality of disk-shaped recording media are configured to be received in an axial direction of a central shaft in parallel, and a first shell having a base surface section parallel to a recording surface of the plurality of disk-shaped recording media and a second shell having a basal surface section parallel to the recording surface of the plurality of disk-shaped recording media are coupled in the axial direction;
• a presser spring comprising:
• a section to be attached;
• and
• a plurality of pressing sections, corresponding to each of the plurality of disk-shaped recording media, protruding from a first edge of the section to be attached, wherein the plurality of pressing sections are configured to come in contact with an outer circumferential surface of the corresponding plurality of disk-shaped recording media and to press the corresponding plurality of disk-shaped recording media;
• and
• a spring attachment concave section formed on an inner surface of a first inner sidewall of the second shell, wherein the spring attachment concave section comprises:
• an insertion attachment section opened in an upward direction, wherein the section is inserted into the insertion attachment section;
• and
• a protrusion concave section opened in an upward direction and in communication with a rear end section of the insertion attachment section, wherein each of the plurality of pressing sections are inserted into the protrusion concave section.