Demo movie recorded in Wolfenstein - Enemy Territory, a 3D action game (also known as "W:ET"); records gameplay and saves it as a movie that can be played in W:ET; stored in the "\etmain\demos" folder and can be loaded using the "Replays" feature in Wolfenstein.

DM_84 files are saved by Wolfenstein: Enemy Territory v. 2.06 and later. Previous versions saved recordings with .DM_82 and .DM_83 extensions.