I think Scorpio's owners have a long history in US distribution and are well connected within the US record industry. When the initial glut of these releases appeared I was convinced that they had to be boots, but after checking with a few labels it seems they were legit, and if they were licensing off of the indies, I'm sure they must have been licensing when doing the major stuff.
Judging by the sound quality though, masters are very rarely used.
Dean