FFmpeg redistribution notice

MP3to4Maker for Car Audio itself and FFmpeg are separate projects.

FFmpeg official site:
https://ffmpeg.org/

Windows builds listed by FFmpeg:
https://ffmpeg.org/download.html

Gyan.dev builds:
https://www.gyan.dev/ffmpeg/builds/

As of Ver.0.9.8 development, Gyan.dev states that its Windows
static builds are licensed under GPLv3.

Before public distribution, include the applicable FFmpeg license
materials and comply with the license terms of the exact build
that is bundled.
