A few months back I asked if MKVToolnix would ever support dsf audio files. At the time, I believe you were not aware of the audio format's details and uses, so I supplied some info.
Most of the music download sites offer dsf downloads now (hdtracks, acoustic sounds, etc.).
Would you consider implementing support for dsf/dsd in MKVToolnix?
I'll try to dig up a dsf/dsd specification doc. [edit: here is the dsf file format spec from Sony.
http://dsd-guide.com/sites/default/f...matSpec_E.pdf]