Anyway, while Windows is fairly easy with audio and codecs are abundant, Apple's OS X is a bit tighter and more anal difficult. However, Xiph.org has a bunch of QuickTime Components that work as an add-on to QuickTime (hence the name 'components'). This makes it ubiquitous for OS X, as almost anything can tie into that. It adds a simple library and then even iTunes can play back or rip to Ogg files. :) Brilliant!
see vorbis.com for more tools and GUIs, if needed.