Security systems or dashcams sometimes use 3-letter prefixes followed by a sequence number.
Use Handbrake to attempt a re-encode/repair. Ajb (375) mp4
Some smaller distribution groups use short prefixes to save character space in file names. Security systems or dashcams sometimes use 3-letter prefixes
An MP4 file labeled "375" might be around 200MB to 1GB depending on resolution. Format: Ensure the extension is strictly .mp4 . Ajb (375) mp4
Check if the file has multiple audio tracks in your player's "Audio" menu. 💡 Potential Origins