I have this converted to MP3 and have listened to it when I go to bed on my mp3 player.
The first of the 4 part audio series is a pretty good relaxation with a voice guide involving the sound of rain and that biaural(sp) tones that I at least enjoy once I get really relaxed, they are at least good to focus on. after 90 minutes(as instructed in the relaxation part) the voice comes back and says something like. "You hear my voice and understand what I'm saying". You are dreaming now....you are dreaming now and are conscious. I think the others are visulization and other lucid activies.
The price don't seem bad. I could post a snippet but I don't want to get in any trouble.