Let me loosen those strings of tension coiled around your body and mind. Let me rid you of all stress and all worry.
(Adapted from Become A Good Girl.)
RAW: usually just a plain recording, with no effects whatsoever, except for when binaurals are specified.
SFX: with sound effects, like echoes, panning, 3D, environmental effects, and all sorts of fun stuff.
Some files have many versions you can chooses from, while others are more sparse.