Maybe the Chuck Ainley remix is just the 5.1 surround version, and this format CANNOT be pressed to a normal CD ...
At least I now understand it the way that the bonus material is also on the Bluray, I already saw a horror scenario that I must buy the Bluray for HD, PLUS the Deluxe DVD for that bonus stuff (which will be better quality than the versions we have of it). This would have been a no-go for me, I rather would have illegally downloaded the bonus stuff somewhere before paying for Alchemy for the 5th time then (vinyl, VHS, CD, DVD, Bluray)