save-video website can download any YouTube videos and it provide you with links to all the available resolution of the video to download, also give you the ability to convert it directly to MP3
to use their service you need to place the video url in the form and press download, the you will be presented with a page with the thumbnail of you video and another download button, after pressing this one you will be presented with the links of all the available qualities of the video to download from.
as a shortcut, you can download any video directly through the website by changing the youtube video url:
for example this: www.youtube.com/watch?v=OdVh4LsH0mY
change it to : www.linkyoutube.com/watch?v=OdVh4LsH0mY and hit go in your browser.
and you will be set to go.