A convertible storage cabinet for storing audio tapes, video tapes, and compact discs, is adapted to be installed in a residential wall. The cabinet has a width suited for being inserted between a pair of vertical wall studs in the wall. The cabinet box has interior walls slotted to receive horizontal shelves for accommodating either video tapes or audio cassette tapes depending upon the location of the shelves; or a pair of vertical shelves that have inclined ribs for receiving compact discs.