The volumes of broadband seismic data acquired and processed by the industry have grown rapidly. The spectral content of this new quality seismic is demonstrably superior to conventional seismic, both at the low and high frequency end of the spectrum. However, broadband seismic data will only deliver its full reservoir value if a quantitative interpretation is possible. Inversion to the impedance domain, assuming one has a good well-tie, is one of the main steps in quantitative interpretation.