X Lossless Decoder (XLD) is a tool for Mac OS X that is able to decode / convert / play various ‘lossless’ audio files. The supported audio files can be split into some tracks with cue sheet when decoding. It works on Mac OS X 10.4 and later. XLD is Universal Binary, so it runs natively on both Intel Macs and PPC Macs.

tmkk.undo.jp/xld
sourceforge.net/projects/xld
wiki.hydrogenaud.io/index.php?title=XLD