A method of enhancing the audio quality in a reproduction medium having unknown characteristics. A connection is provided on the first side for connecting the aerodynamic casing to the extended blade such that the aerodynamic casing at least partially covers the extended blade. The semiconductor memory device of the present invention uses the cell capacitor as the reservoir capacitor in a normal mode, and prevents each voltage from being applied to the cell capacitor in a burn-in test mode. During the depositing, the lens element seats in the nest, if the lens element is in a forward-facing orientation. The regulating circuitry controls the electricity between the male prongs.