Well this has been in the works since Outline 2010. I've always wanted to add exotic digi-tracks to the archive.
One such format is Quartet which was used in both demos and commercial games.
So now it arrives, signalling SNDH library v4.
The accompanying SNDH's have a number of advantages over native Quartet files,
+ Each file has 3 built-in replayers for STFM, STE and Falcon respectively. The player will automatically default to superior sound quality.
+ SNDH allows for sub-tunes which drastically reduces filesizes.
+ Library 4.0 updates the SNDH file-format. Both default tune and sub-tune names are now catered for. (see the SNDH 2.1 fileformat page at our main site).