How burn subs folder when burning DVD with Nero



I have NERO 6 on Windows XP.
I downloaded a DVD movie via a torrent that I used to have on VHS.

Of course the largest file downloaded in the folder was the DVD movie (this time in avi format).
Also a folder was created called “subs” I believe. What do I do with
that folder and how do I include that to burn to the DVD in Nero?

Perhaps I am missing something easy. I know how to include or import
the large AVI file into Nero. By the way I am using the Nero option -
Make your own DVD movie.

Thank you