Img_4389.mov -

: Some of the most famous "internet mystery" videos or paranormal "evidence" clips start as generic filenames. Because the uploader didn't bother to rename it, the filename itself can become part of the lore in creepy-pasta or mystery forums . Why This Matters Digitally

: The sequential number of the file in the device's storage. IMG_4389.MOV

Here is an informative look at the story behind these types of files and what they often contain: What the Filename Tells Us The name indicates: : Some of the most famous "internet mystery"