Question: how to download big youtube videos to mp3?
Answer: Step 1: Open the YoutubeMP3 converter online. Step 2: Copy the Youtube video URL that longer than 1 hour. Step 3: Paste the URL in the YoutubeMP3. Step 4: Click “Convert Video” button. Step 5: Wait for the file to be converted. Step 1: Launch Wondershare Video Converter Ultimate.