A data cartridge exchange apparatus for use in a data storage system may comprise a drawer having a first data cartridge storage location and a second data cartridge storage location. The drawer is operatively associated with the data storage system so that the first data cartridge storage location may...http://www.google.ca/patents/US6648428?utm_source=gb-gplus-sharePatent US6648428 - Reconfigurable data cartridge import/export drawer
