A storage medium accommodation apparatus is disclosed wherein the range of sliding movement of a panel for opening and closing a plurality of storage medium access ports is reduced. The storage medium accommodation apparatus includes a housing having first and second access ports provided on a principal face thereof, and first and second panels for opening and closing the first and second access ports, respectively. When the first and second access ports are closed up with the first and second panels, the first and second panels contact with each other. In order to expose the second access port, the second panel is slidably moved in a particular direction, but in order to expose the first access port, the second panel and the first panel are slidably moved integrally with each other in the particular direction.