To achieve the best results, you must have FFmpeg installed and available in your system's PATH. Sites like YouTube often store video and audio as separate "DASH" streams to save bandwidth.
yt-dlp -f "bv*[ext=mp4]+ba[ext=m4a]/b[ext=mp4] / bv*+ba/b" --merge-output-format mp4 [URL] Use code with caution. yt-dlp download best quality mp4
: If you prefer the H.264 codec for better compatibility with older devices, add a sorting preference: yt-dlp -S "+codec:avc:m4a" [URL] Common Troubleshooting Command to download best video+best audio in mp4 (yt-dlp) To achieve the best results, you must have
: To get the absolute highest resolution (like 4K) and force it into an MP4 container (remuxing), use: yt-dlp -f "bv+ba/b" --merge-output-format mp4 [URL] To achieve the best results