Abstract: A technique for storing and retrieving information-containing discs using two independently operated disc transferring carriages is disclosed herein. The two carraiges are used to transfer discs between storage compartments forming part of an overall disc and drive library and one or more disc drives disposed within their own drive compartments also forming part of the disc and drive library. In one specific embodiment, the two carriages are moved vertically and horizontally on separate tracks between two confronting library arrangements.

Abstract: A technique for storing and retrieving information containing discs utilizing a movable disc storage magazine is disclosed herein. The disc storage magazine, which is designed to store a plurality of information containing discs in individual compartments, is movable along a predetermined path which passes through a specific disc storage station such that each of the individual compartments is positionable within that station. At the same time, a disc drive for storing information on and retrieving information from the discs is located at a disc drive station spaced from the disc storage station. Means are provided for moving the disc storage magazine in a way which places a desired magazine compartment at the disc storage station and means are provided for transferring an information containing disc between that compartment and the disc drive station.