"Para" is the latin prefix meaning "beyond." "Liminal" refers to the "limen" or "threshold" of conscious awareness. So, Paraliminal means "beyond the threshold" of the conscious mind. Subliminal means "below the threshold" of consciousness. Neo-matrix is right, you can hear the voices, and there are no messages that cannot be perceived by the conscious mind as with subliminal tapes. One big difference is that with most subliminal tapes, you need to listen for an hour every day for a month or two. They are effective for some people. On the other hand, you can listen to Paraliminals one time or twice a week and notice a change.