Patent ID: 6198718
Filing Date: 2001-03-06
Classification: G11B

Abstract:
A disc cartridge for accommodating and retaining an optical disc having data recorded onto and reproduced therefrom by irradiation of a laser beam wherein said optical disc can be rotated in said disc cartridge but cannot be easily removed from said disc cartridge, said disc cartridge comprising:an opening extending in a radial direction of said optical disc to a periphery thereof;a shutter for closing and exposing said opening when the shutter is respectively moved between first and second positions; anda sealing member located at partly around the periphery of said opening without engaging said shutter and closing a gap between said shutter and the periphery of said opening for preventing and/or reducing foreign material from entering said opening and being adhered to said optical disc, andwherein said laser beam can be irradiated upon said optical disc through said exposed opening by sliding said shutter to its said second position.