Best answer as chosen by user WILKAN: Sure. YouTube tells you part of how.

by R. Proffitt Moderator - 3/13/13 10:52 AM

In Reply to: Download Youtube video by WILKAN

Let's read this link.
http://www.youtube.com/static?template=terms shares that if there is a Download link, sure, do that!

Since you stated DVD I'm thinking Video DVD which you can make with the neat free tool -> DVD FLICK (see google.)
Bob