A disc cartridge includes a shell for storage of a recording medium taken in the form of a disc having a center core formed at the center thereof. The disc has signal recording portions formed around the center core on the opposite surfaces thereof. The shell has opposite inner surfaces facing to each other to define a disc receipt space containing the disc supported for rotation therein between the inner surfaces. The shell has a chucking hole through which the center core of the disc is exposed and read-write windows through which the respective signal recording portions are exposed. A shutter is mounted for sliding movement on the shell to open and close the read-write windows. A pair of slippery films are formed on the respective inner surfaces.