If your computer came with the DVD burner, you probably have dvd burning
software. I've never seen a pc come with hardware but without the software
to run it.
It may not be the best or fanciest software, but you should have something
that will do the job.
Mine came with Roxio, but it could be Nero or Sonic or other things. Take a
look on your Start Menu and see what you find.
Hugs,
Rach