: Lower resolution, designed for remote viewing on mobile devices or multi-screen grids to save bandwidth.
: Stands for Sub-stream . Security systems record in two modes: Main-stream : High resolution for playback and storage.
: A Unix Timestamp . This number represents the exact second the video was recorded. Converted Time: Saturday, July 21, 2018, 08:28:50 AM (UTC) . Key "Feature"
: A unique identification number, often the serial number of the recorder or a specific event ID.
The primary feature of this file is that it is a of a security recording. Because it is a "Sub-stream" file, it will have a smaller file size and lower image quality compared to the primary recording, making it easier to share or upload.
: Often signifies the recording type, such as "File" or "Full" (continuous recording).
The filename indicates it is likely a video file recorded by a DVR or NVR security system (often associated with brands like Hikvision or Dahua ). Meaning of the Filename Parts:
Edyth Moore says:
38499-70 701531471561_sub_f_1532161730.mp4 May 2026
: Lower resolution, designed for remote viewing on mobile devices or multi-screen grids to save bandwidth.
: Stands for Sub-stream . Security systems record in two modes: Main-stream : High resolution for playback and storage. 38499-70 701531471561_Sub_f_1532161730.mp4
: A Unix Timestamp . This number represents the exact second the video was recorded. Converted Time: Saturday, July 21, 2018, 08:28:50 AM (UTC) . Key "Feature" : Lower resolution, designed for remote viewing on
: A unique identification number, often the serial number of the recorder or a specific event ID. : A Unix Timestamp
The primary feature of this file is that it is a of a security recording. Because it is a "Sub-stream" file, it will have a smaller file size and lower image quality compared to the primary recording, making it easier to share or upload.
: Often signifies the recording type, such as "File" or "Full" (continuous recording).
The filename indicates it is likely a video file recorded by a DVR or NVR security system (often associated with brands like Hikvision or Dahua ). Meaning of the Filename Parts:
October 8, 2024 — 4:05 am
Stefan says:
Great work here – thank you for the clear explanation !
November 29, 2024 — 7:23 am
Jacky says:
It’s a very simple thing, but it has to be made very complicated
April 10, 2025 — 11:51 pm
비아그라 구매 사이트 says:
멋진 것들입니다. 당신의 포스트를 보고 매우 만족합니다.
고맙습니다 그리고 당신에게 연락하고 싶습니다.
메일을 보내주시겠습니까?
July 8, 2025 — 12:33 pm
Emily Lahren says:
Thank you for reading! You can contact me through my main contact page using the menu at the top of the page.
July 27, 2025 — 8:27 pm
Steve says:
Thank you!
July 26, 2025 — 2:27 pm
Muhammad Kamran says:
Good effort, easy to understand.
July 28, 2025 — 10:36 pm