Yes it is possible.
You need burning software. If you bought DVD burner for your computer it usualy come with some kind of software.
Just copy 15 min DVDs to hard drive import them to you burning software and make DVD.
If you want to edit your project, some basic editing functions should be in your software already so you can make menus and chapters. Most of the time the software which come with the burner is stripped down version of the real think so you may have to purchase full version.
If you have NERO or ROXIO they all have basic editing functions to make DVD.
If not check the web, there is lots of it around.