The Discipline of
Transcendence
Vol. 1
talks on Buddha's 42 Sutras

by Osho   

talks given live   Aug. 1976
Pune, India
book, eBook, mp3 audio
see these links for availability
Buddhist master that Osho talks about in this book:

Gautam Buddha
             oshobob  The Living Workshop                                
                                                          Osho Books