Are you trying to a lost video file with this name, or
: This usually stands for " Sub-stream " or " Sub-file ." In surveillance, a "Sub-stream" is a lower-resolution version of a video (e.g., VGA or 720p ) used for remote viewing or mobile playback to save bandwidth, while the "Main-stream" records in Full HD or 4K . 38495-60 601531470826_Sub_f_1532160055.mp4
: This is a Unix Timestamp . It represents the number of seconds that have elapsed since January 1, 1970. Are you trying to a lost video file
: If this was found in a cloud backup (like Google Photos or iCloud), the "Sub" prefix might indicate it is a low-quality preview generated by the service while the full file is processing. : If this was found in a cloud
While the exact content of this specific file is private to the owner or the system that generated it, Filename Anatomy
If you have this file and cannot open it, it may be due to a proprietary codec used by a security system. To view it, try:
: 1532160055 translates to Saturday, July 21, 2018, 08:00:55 AM (UTC) .