Once the device reaches a high number (like S9999 ), it typically starts over at S0001 , deleting the oldest files to make room for new ones.
If you can tell me what device recorded this (e.g., a Garmin dashcam, a Samsung phone, a drone) or where you saw the name, I can give you a much more specific technical feature list for that exact model. Which device or app produced this file? S0086 mp4
This allows you to record long sessions (like a 2-hour drive on a dashcam or a long family video) without filling up your SD card instantly. It maintains high visual quality while keeping the file size small enough to share easily. 3. Loop Recording (Common for Dashcams) Once the device reaches a high number (like
Because it is an file, the core feature is H.264 or H.265 (HEVC) Video Compression . This allows you to record long sessions (like
This indicates it is the 86th video recorded in that specific session or folder.
If this file appeared on a dashcam or security camera, a key feature is .