IG. 2, a reproducing device 10 is the storage media housing device, which can house optical disks such as CDs or DVDs, or storage media such as memory cards; media 11 is the storage media housed within the reproducing device 10, and the media 11 are explained as optical disks such as CDs or DVDs in the first embodiment.Furthermore, a support member 12 is for supporting the inside diameter of the d