Thank you, and I will leave this thread up as it stands as an "informational" aid to our visitors.
The best thing to do before purchasing ANY material is to first ask around to see if others have bought the product and, if so, what their feelings are about quality, service, etc.
As you mention, as the authorized Charlie Chan releases appear, the sales of the "grey market" sellers will shrink. Some, in despiration, will sadly resort to very dubious tactics, as we see above.