A method and apparatus for configuration management for a computing device. Content is moved within the VOD system in accordance with predetermined variables such that certain content, such as that which is in high demand, is located on a server which is nearer to a subscriber, and content which is in lesser demand is located on a server which is more remote from the subscriber. A head transduces the burst patterns to provide burst signals to a servo circuit which controllably positions the head with respect to the surface of the disc by determining a position error signal from a combination of the burst signals. Two of the filaments, however, are separately encased by a sleeve of translucent, differently colored material.