LAME is an open source audio encoder. The encoder is not a graphical application that you can double-click, but a command-line tool, usable from the Terminal application (which lives in the Utilities folder inside the Applications folder) or other graphical applications.
What's new in version 3.99.5
ReleaseFebruary 18, 2016
Date AddedFebruary 18, 2016
Operating SystemsMac OS X 10.4 PPC, Mac OS X 10.5 PPC, Mac OS X 10.3.9, Mac OS X 10.4 Intel, Mac OS X 10.5, Mac OS X 10.5 Intel, Macintosh, Mac OS X 10.4