This set contains two CDs which follow the book "Thai for Beginners". It can help you to rapidly improve your speaking and listening skills in Thai. They are approximately two and a half hours long in total. There are 19 tracks for each CD including a Guide to Pronunciation, Vocabulary, Conversations and Sentences for Lessons One through Ten, Consonants, Vowels, Tones and Other Punctuation Marks. The CD set has the same content as the Thai for Beginners tape set. It is digitally recorded and very convenient to use. If you already have the tapes, you may not need to buy the CDs unless you want to have a different format of this audio program.