It is the original soundtrack release of On Her Majesty's Secret Service, not one of the later expanded releases. CAPITOL CATALOG MKT (C92) is a legitimate label, so the the release is legit. It's a high-res release of the original soundtrack album, many of the classic soundtrack albums have been released like that.
All the legitimate download places seem to carry it. It's also available at Pro Studio Masters
Thank you, gentlemen, for setting me straight. I was so thrilled at finding this download, that I neglected to scroll down and realize that it was only the orig. 11 track album.