Usually means this was the 146th video recorded by that device. 2. Common Sources
If you found this file on your own hardware (camera or phone), it is perfectly safe. However, if you received it as an attachment from an unknown sender, Hackers sometimes use common-looking filenames to disguise malware. You can scan the file for free at VirusTotal before opening. 5. Troubleshooting: File is Corrupt 1000146 mp4
The "gold standard" for opening almost any video format or codec. Usually means this was the 146th video recorded
Older DVR systems often export clips with these numeric titles. it is perfectly safe. However