Have I got this straight? (And forgive my ignorance, but what do SC and DC stand for?)
BTW, this process reminds me of an article I read about the restoration of some old Doctor Who episodes from the 70s. The episodes were broadcast in color, but the color masters were destroyed, leaving only B&W 16mm copies. But a fan in the US had recorded the episodes in color on VHS, so when these tapes were discovered recently, the color signal from the tapes was laid over the sharper B&W 16mm transfer.
Nice work guys.