A blurry clip of a concert encore or a late-night laugh with friends.

A sudden burst of inspiration recorded so it isn't forgotten by morning.

While technical guides from Adobe and Cloudflare describe MP4 as a "digital container" designed for high compression and wide compatibility, it acts as a modern-day time capsule. Because it packages both audio and video so efficiently, it ensures that a memory from 2022 remains playable on devices in 2026 and beyond. Why We Keep the "VID_" Files