So Mahmp4 -

Their lower bitrate makes them ideal for quickly transferring to a smartphone via Wi-Fi for social media posts.

These are standard proxy or "normal" resolution video files created alongside high-quality footage. Sony cameras (like the RX10, A77, or Alpha series) often generate these for specific reasons: so mahmp4

If you're seeing files starting with in an MP4 format, you're likely looking at video files generated by a Sony camera . 🎥 What are MAH MP4 files? Their lower bitrate makes them ideal for quickly

They are much smaller in size (e.g., ~32MB vs ~200MB) compared to primary formats like AVCHD or XAVC S. so mahmp4