I am back and forth between Snow Leopard and Mavericks.
For Snow Leopard and earlier, most of the time I use iDVD because of the menu/presentation themes, but for quick and dirty, just "git 'er done, DVD slideshow, I use Roxio Toast Titanium.
I know past versions of iPhoto, alone, couldn't create a DVD player readable disc version without rendering/authoring the data first using a DVD authoring program.
Is this no longer true with the new 64 bit Mavericks version of iPhoto? I have created copies of my iPhoto library and I updated to the new Mavericks version of iPhoto and had it update one of those iPhoto library copies, but I haven't tried to create a slideshow on DVD with this updated iPhoto version, yet.