A double crystal analyzer linkage includes the fixed pivot point, a fixed pivot point shaft, and three sliding axis points constrained to allow only sliding motion along given linear, parallel paths. A disc drive controller determines the optimum MRO of a zone of tracks by analyzing multiple tracks in the zone with the actuator arm located at a series of offsets relative to the track center. As a result of this arrangement, the floor part as well as the cover part are manufactured by means of an operative extrusion process and the openings are subsequently placed, in particular stamped, into the cover part, whereby an isolating element, which is insertable into an opening and which penetrates, in the inserted state, through the opening and which features a case. While this lamp power is being maintained, the size of the lamp current is limited to a current limit. A post-comparing of one or more of the second table addressing parameters with the second table index from the virtual address is performed to form one or more results.