DRMBuster - DRMBuster is a powerful all-in-one audio and video conversion software for any kind of purchased or legally obtained music and video.
LameXP - LameXP is an Audio Encoder Front-End, a graphical user-interface for a number of audio encoders.
Apprentice Alf's DeDRM Tools - Everything you ever wanted to know about DRM and ebooks, but were afraid to ask.
Multi frontend - Multi frontend is a Windows GUI (grafical user interface) for the following console audio...
AppleMacSoft DRM Converter for Mac - Legal Convert iTunes and Apple Music M4P to MP3 on Mac with DRM Converter 3.
winLAME - winLAME is an encoder for several audio formats, including mp3 (MPEG Layer 3), Ogg Vorbis and more.