I have tried Centerpointe and think it is a complete waste of time and money. The Monroe Institute has much better products with Hemi-Sync technology that creates great results. I think Centerpointe is just a marketing scam. Paraliminal tapes are completely different. They are a form of hypnosis and NLP with verbal induction/information and don't have brain entrainment frequencies. Listening with a light and sound machine could possibly enhance it for a stronger effect. I'd like to warn people to not waste money on Centerpointe though. I should have returned my CDs but let too much time go by.