HowCurio original HandBrake comparison — 14 October 2026 Native Windows HandBrakeCLI1.11.2, x264 encoder, medium encoder preset. Owned 8-second 640x36030fps test pattern with frame numbers, no audio. No crop, unchanged frame size and duration. compression-source.mp4: 1950424bytes compression-rf20.mp4: 1041185bytes; RF20 compression-rf30.mp4: 356129bytes; RF30 The files are actual outputs, not an estimated savings calculator. RF is encoder quality control, not a percentage or MB target. This example gives no universal quality verdict or size reduction promise for phone/camera footage. Open both outputs, compare moving shapes and frame-number text, and choose your own short representative test before encoding a large source. Preserve the original. No destination-device compatibility or GUI click trial was performed. Original specimens are free to use/adapt.