We report on measurements of far infrared (IR) reflection spectra of Tl2Ba2CaCu2O8 and YBa2Cu3O7 ceramics that are composed of strongly anisotropic crystallites and we present a new method for analyzing reflection spectra of metal-ceramics. In the analysis we take into account that the crystallites have conducting connections. The analysis allows the description of experimental reflection spectra by using Drude's theory of conductivity and introducing appropriate phonon resonances. In a second part we describe results of reflection measurements for an oriented YBa2Cu3O7 thin film. We find that the reflectivity above Tc can be described by a Drude-dynamical conductivity for small frequencies (< 600 cm−1) while a strong deviation from a Drude behavior is found for large frequencies. A reflectivity enhancement below Tc gives evidence for a Mattis-Bardeen like conductivity with an energy gap.