Part 5 of the audiobook version of my Nietzsche and the Nazis: A Personal View.
Part 5. Nietzsche’s Life and Influence [mp3] [YouTube] [46 minutes]
21. Who was Friedrich Nietzsche? [mp3] [YouTube]
22. God is dead [mp3] [YouTube]
23. Nihilism’s symptoms [mp3] [YouTube]
24. Masters and slaves [mp3] [YouTube]
25. The origin of slave morality [mp3] [YouTube]
26. The overman [mp3] [YouTube]
Forthcoming:
Part 6. Nietzsche against the Nazis
Part 7. Nietzsche as a Proto-Nazi
Part 8. Conclusion: Nazi and Anti-Nazi Philosophies 
Previous:
Part 1. Introduction: Philosophy and History [mp3] [YouTube]
Part 2. Explaining Nazism Philosophically [mp3] [YouTube]
Part 3. National Socialist Philosophy [mp3] [YouTube]
Part 4. The Nazis in Power [mp3] [YouTube]
Related:
The Nietzsche and the Nazis page.