When pressing the PCM card button to audition PCM card sounds on a D-70, you will not get any effects and will not be able to use the sustain pedal. The purpose for the PCM Card button is to allow quick access to hear the Tones on a selected PCM card. If you want to use the tones on the PCM card with effects or with your controllers (sustain, pitch bend, etc.) they will first have to be written into tones, patches and performances.