The audio files listed below are from the current AFPAM 36-2241, Professional Development Guide, dated 1 Oct 13. They were obtained from the Air Force website at http://pdg.af.edu/MP3s_2013.htm.
The MP3 files can be downloaded individually or by chapter. Download individual mp3 files by right-clicking on them and selecting "Save Target As..." and selecting your desktop (or wherever) as the download location. The entire chapter can be downloaded using the same method. Note that the chapter files, which contain all the individual mp3 files for that chapter, are zipped and must be unzipped after they have been downloaded.