Amazon.com description: Product Description: On the Go language learning programs are now available in a choice of either cassette tapes or compact discs. This updated compact disc program emphasizes French speaking and listening comprehension on a fundamental level, which makes it an ideal self-teaching tool for learning in a car, international travelers, as well as good supplementary material in school language labs. On the Go programs, available in several languages, each offer approximately 180 minutes of audio instruction. They come with a script booklet. No textbook is needed for these informal and practical language learning programs.