A disc cartridge including a cartridge body and a disc housed therein. The
cartridge body has an aperture exposing part of the disc and a shutter to
open and close the aperture. The shutter has a connecting arm extending
from one side. An elastic moving piece extends along the connecting arm
with the base end fixed to the free end of the connecting arm. The base
end of the shutter has a movement guide piece with a window through which
a pressing piece projects. A shutter movement limiting member pivots on
the shutter to limit the shutter from opening when the aperture is closed
by engaging an engagement portion on a movement limiter provided on the
cartridge body. The shutter movement limiting member further pivots with
the elastic moving piece to disengage the engagement portion from the
movement limiter when a force is applied to the pressing piece.