People encounter 3GPP files now because infrastructure-based formats remain active far longer than consumer-facing ones, and when 3GPP dominated early phone and telecom workflows, it produced enormous amounts of media that remained untouched in archives and legacy systems; telecom and enterprise environments favor stability, so voicemail and logging systems that rely on 3GPP rarely change, causing the format to persist not due to new use but because it was never replaced.
3GPP files remain widespread in embedded recording systems, which follow replacement cycles much slower than consumer electronics, so CCTV gear, body cams, dash cams, and industrial devices keep relying on older encoders optimized for low bitrate and reliable decoding, leading them to use 3GPP by design; when users
export recordings for compliance or review, they often stumble upon 3GPP files, and some modern workflows still record internally in 3GPP before converting to MP4, so raw or partial exports expose the format even though it’s functioning normally.

Finally, archives in legal, medical, and enterprise fields avoid re-encoding since it may affect authenticity or chain-of-custody, so they keep and distribute recordings exactly as created—including 3GPP—and modern tools support them to maintain historical compatibility; people still find 3GPP because long-lasting systems never moved away from it, and infrastructure formats endure far longer than consumer formats, leaving vast early-era recordings in backups and old hardware that resurface later.
Another major reason is that telecom and enterprise systems favor reliability instead of rapid change, so voicemail platforms, call-recording tools, IVR systems, and network loggers built around 3GPP specs remain unchanged because switching formats adds risk, cost, and regulatory hurdles, meaning these systems still output 3GPP even if the surrounding software looks modern; users see the format not due to recent decisions but because it was never replaced, and 3GPP also persists in surveillance, security, and embedded hardware where CCTV units, body cams, dash cams, and industrial recorders rely on older low-bitrate, low-overhead encoders that decode easily on limited hardware, making exported footage surface as 3GPP long after it vanished from consumer tech.
In addition, many modern media workflows still use 3GPP as an internal or intermediate format, recording and processing in a 3GPP container for efficiency or compatibility before converting to MP4 at final output, so when users access raw storage, download originals, or experience interrupted exports, the underlying
3GPP file becomes visible and may look outdated even though it’s functioning exactly as intended; finally, legal, medical, and enterprise archives preserve original files to protect authenticity and chain-of-custody, distributing recordings exactly as created—including 3GPP—because support is inexpensive and ensures access to historical data, making 3GPP appear today not due to modern use but because it remains embedded in long-lived systems that prioritize reliability.