I was referring to FUNCTION, not the relitive POWER of a DSP. The DSP in a $199 unit HAS THE SAME FUNCTION AND CRUNCHES NUMBERS the same way as that in a $4,000.00 unit, the only difference is in scale. BUT given sufficient DSP power allocoated to the job at hand, that $199 unit COULD in theroy decode DD as well as the $4000.00 one.