WonderFox HD Video Converter Factory Pro is capable of downloading videos, playlists and channels from YouTube and other 1000+ sites and converting YouTube to MP3, MP4, and any other formats you need. It ensures the fastest conversion speed and will never restrict video length. Just use it to convert YouTube videos longer than 2 hours, 3 hours and more to MP3 without hassles. As a powerful YouTube video downloader, this program can also help you download 720p, 1080P, 4K and even 8K videos without a hiccup. Free download Free download this program, and let’s have a look at how to easily convert YouTube to MP3 long videos.