Comp 1..mkv — Webcam

A "comp" often stands for "compilation." This could be several clips of webcam footage (vlogs, video diary entries, or reaction videos) stitched together.

If the file opens but you only hear sound or see a black screen, you may be missing a specific codec . Try installing the K-Lite Codec Pack or using VLC. Webcam comp 1..mkv

Look at the "Date Created" and "Size" to see if it matches a specific event. A "comp" often stands for "compilation

The filename is a generic name typically used for video files created by screen recording software, webcam capture tools, or manual video editing projects. video diary entries

Right-click the file and select (Windows) or Get Info (Mac).