The book and discs guide the learner, step by step, through a process of perfecting the learner's pronunciation of French. The earliest units cover simple and basic vowel and consonant sounds. Then, the next lessons cover common vowels combinations and clusters with or without consonants. Then, you are guided through words, phrases, clauses and sentences, learning how to pronounce them in context. The CDs provide the audio, and the book shows a diagram of the shape the mouth makes for a particular sound. In addition, the software gives numerous "Practice for Mastery" sections which allow the learner to hear and practice the many sounds of French.
For the most part, the presentation is very conducive to learning how to pronounce French. The only drawback of this software is how the sounds are presented in some cases. Sometimes the vowels are given in isolation, so although you do get to hear how the vowels sound when spoken by a native French speaker, you don't get to hear them in context and hear them carefully contrasted with very similar sounds in similar linguistic environments.
Yet in spite of this drawback, overall the presentation of the sounds is very helpful and will certainly aid you in improving your ear and your tongue as you pursue perfect pronunciation of French! If you are a linguist, this software has an added plus: the French sounds are all represented in their proper positions on an IPA (International Phonetic Alphabet) chart; so, if you know the IPA, you'll see exactly how to pronounce the sounds of French in this system.