After visiting the MAC page, I noticed that an upgraded version is under testing, and the code is becoming available for other developers.
I don't want to start a further debate about MAC v FLAC v WavPack etc, but I would appreciate it if people up to date could confirm that MAC is still under revision (and not left as a finished hobby as I have read) and is well worth considering 'future-proof wise'
Thanks guys
Skywalkerjen