A disk cartridge is provided which, with a small number of parts, can reduce
manufacturing
costs and facilitate assembly. In particular, the disk cartridge can be assembled
easily even if a disk medium is small-sized. Case members of a same configuration
are superposed together so as to form a case. Shutter members of a same configuration
are disposed so as to correspond to openings of the case members. A lock member
and a spring member are provided in common for the two shutter members. The case
members of the same configuration and the shutter members of the same configuration
are used, and only one lock member and only one spring member are provided. Thus,
a number of parts can be reduced, manufacturing costs can be reduced, and assembly
can be facilitated.
