Prices Paid for Copies of National Archives Materials?

[misteranalog]

The National Archives And Records Administration [NARA] , Archives.gov, has a lot of newsreel-type films.
Unlike LoC, they do not make copies themselves of the films they hold.
They instead want you to place orders with commercial companies they work with,
they send the films to those companies, and you place your orders with those outside companies.

My question:
what PRICE did you pay to copy a NARA film onto a DVD?
I am interested in hearing from anyone with knowledge of prices paid for copies of actual movies or newsreels
I am interested in some footage of World War I combat.
I see this sort of material on places like the History Channel.