A disc cartridge includes a cartridge body, a first shutter, a second
shutter, and a rotational member. The cartridge body includes a disc
storage portion, a chucking opening and a head opening. The disc storage
portion has a disc window and a bottom and stores a disc, having first
and second sides, therein so that the disc is rotatable in the disc
storage portion and that the disc exposes the first side inside the disc
window. The first and second shutters are provided on the bottom of the
disc storage portion to expose or cover the head opening. The rotational
member is provided over the first and second shutters inside the disc
storage portion and is engaged with the first and second shutters in such
a manner as to open or close the first and second shutters when rotates
inside the disc storage portion.