DISK CARTRIDGE

摘要

PURPOSE: A disk cartridge is provided to secure transferring distance of an optical pickup for the optical pickup to access a disk mounted on the cartridge. CONSTITUTION: The disk cartridge contains a side wall(30) having step for an inner side wall and an outer side wall to have different heights. The side wall is located from an outermost side of a disk while having a specific gap. The side wall is formed by the inner side wall having a height of t1, and the outer side wall having a height of t1 by forming the gap through extending from the inner side wall for a height of half of a delta t. A relationship between heights of the inner side wall and the outer side wall is t2<t1.