Funny you should say that! I listen to subliminal tapes all the time when I'm playing computer games, but subliminals do not require your attention. Not sure about paraliminals, though! For full effect don't you need to be in a position where you can give yourself entirely to the tape? Having said that, if you look way back in the forum's annals you will find a post where Pete says that a person listened to "Memory Supercharger" constantly for three months with spectacular results. I guess you must get some rienforcement from listening to the tapes, though. Try it and see.
