A quick mention that CAO ("Composition-At-Once") has been updated to fix a mildly serious bug.
CAO turns standalone FLACs into single-file 'superFLACs' with an embedded cuesheet, so you still know within the one big file where all the separate tracks are meant to start and finish. CAO can also use that same information to split a superFLAC apart back into its constituent single-file FLACs. It's an important design requirement of CAO, in other words, that it should always be completely reversible: what it joins together, it should be able to split apart later, should the user so desire. [...]