Patent ID: 7191460

Claim:
A disk protection casing, comprising: a casing body having a receiving space therein and an access port formed in a first side of the casing body; and a disk holder insertable into an interior of the casing body via the access port, and one of the disk holder and the first side of the casing body being structured such that the disk holder is prevented from being incorrectly inserted into the casing body, wherein the disk holder includes an elastic member for supporting a disk therein, and the casing body is formed so as to set the disk holder with a change of an elastic supporting force of the elastic member with respect to the disk when the disk holder is inserted into the interior of the casing body, wherein the disk holder is configured to be inserted into the access port such that a predetermined opened distance of the access port remains between an outer edge of the disk holder and an outer edge of the casing body.