Video disks are short videos that can be found and downloaded to the Player's PDA throughout the course of both Doom 3 and Resurrection of Evil. Most of these videos contain trivial background information (or propaganda) about the UAC and the Mars Base, but some contain important clues or information relevant to the plot. =Video disks found in Doom 3===Mars City=====Marine Command Briefing===Creator: Marine HQ Date: 03/11/45Standard Operating Procedures on Mars ===Series 3 Plasma Gun Briefing===Creator: UAC Advanced Weapons Date: 07/28/44 Informational Video on the Series 3 Plasma Gun