A process for preparing alkylhydroxybenzoate detergent-dispersant additives having low sulfur content and high TBN is described. The playback information indicates a playback mode corresponding to each of the more than one kind of audio data. In one preferred aspect, the adjuvant is provided in the form of a recombinant poxvirus vector, such as a vaccinia virus vector, which comprises a nucleic acid sequence encoding IL-15. The resulting sintered reactive material preferably has a tensile strength in excess of 1800 psi and an elongation at break in excess of 30%. The composite structure can be mounted in a direct configuration on the carrier shaft to be axially displaceable thereon.