First i wanna know if this is a correct usage of memory supercharger

i lie down on the bed close my eyes and open the tape. during the tape i pay attention only to the first 5 minutes which is understandable because there's only 1 voice after that i pay little attention to it. after finishing listening i feel relax but not sleepy and i can't get any knowledge from the tape . is this correct? i listen to it for around 1 hour (too long?).

my hope is to improve my dream recall and induce lucid dream.can this paraliminal do these things for me and if yes how long does it take?