A_27_ev.mp4 -

Because this is marked as an "event" file, most dashcams will it, meaning it will not be overwritten by the normal loop recording cycle until you manually delete it or format the SD card.

This is the most critical part of the filename. It signifies an Event or "Emergency" file. These are usually triggered automatically by a G-sensor (detecting a collision or sudden braking) or manually by the user pressing a "lock" button. mp4: The standard video file format. a_27_ev.mp4

Does this file belong to a specific brand of camera, like a , Thinkware , or 70mai , that you need help troubleshooting? Because this is marked as an "event" file,

Often indicates the "A" channel, which usually refers to the front-facing camera in a multi-camera setup. most dashcams will it