Patent ID: 7519981

Claim:
An optical reproducing device, comprising: a turntable on which an information recording medium rotates; and an optical pickup which reproduces data from the information recording medium, wherein the information recording medium is in a cartridge, the cartridge comprising a cartridge case having an opening to receive the information recording medium, an opening cover, detachably mounted to the cartridge case at the opening, to enable the information recording medium to be withdrawn or inserted with respect to the cartridge case, a pair of elastic pressure parts, elastically formed on the opening cover, to elastically support the information recording medium to hold the information recording medium relative to the opening cover when the opening cover is not attached to the cartridge case, and a release member to release the pair of elastic pressure parts when the opening cover is attached to the cartridge case so that the information medium is rotatable in the cartridge case by the turntable as the optical pickup reproduces the data.