| http://www.w3.org/ns/prov#value | - When a user requests ejection of an optical disk in the optical disk drive 21 or in the changer 22 to the outside (step 30) by a method such as pushing a switch or an operation of a remote control, which is omitted in FIG. 1, the optical disk apparatus 20 determines whether the optical disk may be ejected (carried out) (step 31).
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