_4vid.mp4 | Popular

Many "All Video Downloader" apps use this prefix for saved files.

This file should play in any standard media player, including VLC Media Player, Windows Media Player, or QuickTime. Common Sources _4VID.mp4

Based on common file naming conventions, is typically a generic name used by various third-party video downloader apps or web tools (such as those for YouTube, Instagram, or TikTok) to temporarily label a downloaded video file. Many "All Video Downloader" apps use this prefix