| 摘要 |
<p>The present relates to a disc cartridge for accommodating a disc therein, which comprises two shell halves opposed to each other, one of which has a spindle hole into which a spindle is inserted to rotate the disc, a head insertion hole located adjacent to the spindle hole into which a read and/or write head is inserted, and a shutter for closing and opening the head insertion hole which is slidingly moved along a guide portion formed at a front end of the cartridge, opposed to a reproducing apparatus. The disc cartridge is improved in that the other shell has an annular rib at its center portion so as to be opposed to a non-recording portion of the disc. <IMAGE></p> |
