Patent ID: 6754168
Filing Date: 2004-06-22
Classification: G11B

Abstract:
A disc cartridge comprising:a cartridge housing having a first half and a second half, said first half being structurally adapted to mate with said second half, said first half having a circular-shaped portion extending from a first half surface, said second half having a second half opening; an inner case having an inner case upper surface, an inner case opening in said upper surface, and an inner case side surface, said inner case side surface being in contact with said first half surface and being concentric with said circular-shaped portion, said inner case upper surface being adjacent said inner case side surface, said inner case opening being in alignment with said second half opening, said inner case opening and said second half opening forming an opening window; and a shutter member being structurally adapted to travel along a guide groove to open and close said opening window.