: Common for older digital cameras (like Canon or Nikon) or modern dash cams, which generate files based on the internal clock's date.
: Audio Video Interleave (AVI) , a multimedia container format developed by Microsoft in 1992. Dec22_0037.avi
If you are looking for a write-up for a creative project or an investigation into a specific found-footage file, Technical Overview : Common for older digital cameras (like Canon
While there is no single famous internet mystery or "creepypasta" specifically tied to this exact filename, the extension is frequently associated with "lost media" or "haunted file" horror stories, such as the famous Suicidemouse.avi. such as the famous Suicidemouse.avi.