A magnetic recording medium having a non-magnetic support and a magnetic layer formed thereon, wherein the magnetic layer comprises a ferromagnetic powder, a binder and a non-magnetic inorganic powder, and wherein at least 95% of the non-magnetic powder particles contained in the magnetic layer have a particle size of 0. The image forming section forms a toner image on a print paper. The medical documents are stored in special medicine-specific data formats containing user and meta information. Tracers may serve as unique identifiers for particular data copies provided to particular Web service clients, allowing instances of the data copies to be associated with particular Web service clients. This programmablereprogrammable capability gives universal adaptability in that the response unit circuitrycentral control circuitry can be incorporated directly into or associated with other goods that previously lacked locating abilities.