Want a free online YouTube to MP4 Downloader HD service?
There is one from DVDVideoSoft com.
1. Go to YouTube.com, locate and copy URL address of the video you want to download as HD MP4.
2. Go to YouTube to MP4 Downloader HD online service. Paste the link into the box. Click 'Download as HD MP4' button.
3. Next click Download to download this video from YouTube as HD MP4.