A new type of metal-particle tape, whose thickness is thinner and whos
e particles are better oriented than traditional thick particulate med
ia, is simulated and analyzed. Signals at high densities are much larg
er in the thin tape than in the traditional tape. Nonlinearities at hi
gh densities are dominated by transition width increases. Signals and
nonlinearities in even thinner media are studied versus record gap len
gth to investigate proper system parameters. (C) 1996 American institu
te of Physics.