  We inspect the optical properties of dissipative double-negative
metamaterials (DNMM) and find explicit expression for the total reflection
angle and the correct Fresnel formulae describing the reflection and refraction
for the DNMM at the oblique incident of the electromagnetic wave on the
interface for \textit{TE} as well as \textit{TM} electromagnetic wave
polarization. The reflectivity and transmissivity of DNMM film embedded in a
positive refraction index (PIM) surrounding are presented and discussed.
