| http://www.w3.org/ns/prov#value | - Another aspect of the invention is an apparatus for optically reading or recording information on an optical disk which is rotatable about an axis of rotation, wherein the apparatus includes a frame, a carriage, a carriage drive, an objective lens, an objective lens holder, a focus drive, and a fine tracking drive, wherein the carriage mass and the fine motor mass each have a center of mass within
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