A common file format for digital film work is the ANSI/SMPTE DPX file format which represents the density of each colour channel of a scanned negative in a "10-bit log" format. There is typically a different file for each frame, often 20 to 50 megabytes in size.
... La Pérouse, (1741-1788), French explorer of the Pacific
Meriwether Lewis, (1774-1809), leader of the first American expedition to cross the continent
David ...