A disk cartridge includes a case, substantially rectangular in shape,
provided with a disk-shaped rotatable recording medium therein, the case
including a plurality of windows through which the recording medium is
exposed and a recording or reproducing head is inserted when recording or
reproducing, and shutters provided for the plurality of windows
respectively, that are capable of opening and closing so as to cover the
plurality of windows when recording or reproducing is not performed, a
first window and a second window of the plurality of windows being formed
on one surface, and a width of the first window in an opening and closing
direction of the shutters being wider than that of the second window. With
this arrangement, it is possible to provide a disk cartridge capable of
adopting for both a driving device for a small-sized disk and a driving
device for a large-sized disk.
