Just wanted to say that I've now given the McKenna CD+book to my sister as she also wants to lose weight like me, so we'll see if it works on her as well as it worked on me.
By the way, Paul McKenna has a weight loss CD you can get from Amazon, that has two tracks. In the first track, he explains his easy weight loss system (just 7 Principles-very simple and make a lot of sense), and the second track is a 15mins hypnosis using double induction/similar to Paraliminals-talking in each ear simultaneously, while using NLP and other Hypnosis methods).
I used that one for 7 days daily and applied the 7 principles. Then I got the same program but on DVD. Again there are two "tracks"... in the first one, you see Paul explaining his principles (exactly same script that is on audio CD). What is great is that you also see two of his weight loss participants, before and after - very motivational. Then the 2nd track is the actual hypnosis. Now this is similar, but it also has the added benefit of putting you in a trance with stunning images of water, tropical beaches etc... it is cleverly made: you almost entrain to the slow movement of the waves, and it uses defocusing and other visual ways of putting you in a receptive state- simply brilliant!
Having said that, I viewed the DVD only about 4-5 times, as it's more practical for me to listen to my CD with my Walkman - without needing a TV in front of me!
Then I found out that he has a new book, "I Can Make You Thin" which comes with a CD (again you can find it on his site, or from Amazon). In the book he simplifies his system even further: he keeps only the 4 principles! The CD hypnosis is very similar, but is longer, about 20mins. The music is the same-very relaxing. In his book he also gives a number of NLP-based techniques for controlling your urges for certain foods, and visualizing your ideal body. This longer track is what I used and mixed with the Holosync Awakening Prologue.
Comparing the Ideal Weight Paraliminal to Paul McKenna's I'd say that they are both based on sound principles, like making you aware of your own body and its needs - eg. your body knows what foods and in what quantities it needs to eat something and when it is or isn't hungry. They both help you "listen to the wisdom of your own body". They both use visualizations, and similar NLP methods like "stepping into your future ideal you", etc... And they both don't make you follow a specific diet. So they can be used, whatever your diet style is.
I think they complement each other very well. However, the Paraliminal is more general, in that is can be used for people that need to put on weight as well.
McKenna's method has an over 70% success rate. You can find more about his method online http://www.paulmckenna.com/weight_loss_seminar.html.
I've read the comments by many people here about the Ideal Weight Paraliminal and it seems that a few had no success with it. I believe that they need to work on other issues that hinder their weight loss. As the Ideal Weight CD booklet explains, other Paraliminals are suggested to work on those issues first. Even Paul McKenna says that many people eat because of emotional problems and they need to resolve those first.