I'm going crazy trying to find a way to convert a .mkv file with H264/AAC to an .mp4 file with the same content (so QT can play it natively). VLC's transcoding doesn't work, ffmpeg doesn't seem to be ...

When you want to decode, encode, transcode, mix, demix, stream, filter, and play, then FFmpeg is probably the best tool for the job, and it’s available for Windows 10 as a free download. However, it ...