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.
convert and play audio data in a variety of lossless-format. Files supported formats during decoding can be broken down into individual tracks on the basis of information in the files cue sheet.
http://tmkk.undo.jp/xld/index_e.html