It's the Quietude CD that comes as a free gift when you buy the Awakening Prologue (Holosync prgram). My daughter uses it too for study - she has problems concentrating longer than 20 minutes on her readings, with this CD she studies 4-5 hours with no problems and does not even get brain tired. That CD is sensational indeed!Your mind does not wonder off - I am doing my Master degree at the moment and do my readings with Quietude (through headphones of course).
Annie
