1)   MAC M4P Converter 5.1.1
MAC M4P Converter convert any iTunes music to mp3 or AAC on Mac . It easily converts DRM protected iTunes m4p to mp3, m4a, m4b to mp3, m4p to AAC, m4p to WAV, any iTunes format to unprotected MP3 formats at high speed, with CD quality.

 2)   M4P to MP3 Converter for Mac 3.0.1
M4P to MP3 Converter is a handy M4P to MP3 conversion for Mac OS X. It can convert iTunes M4P files to plain MP3, AAC, Apple Lossles, AIFF, or WAV formats.

 3)   DRM Converter 3 for Mac 3.4.1
DRM Converter 3 easily converts iTunes M4P to MP3 or AAC on MAC OS X. Batch convert iTunes DRM protected music files to unprotected MP3, AAC, Apple Lossles, AIFF, or WAV files ready for use on any computers or mobile music devices.