I have been making quite a few slide shows out of photos for Christmas this year. Using Nero Vision I have been making the slide shows and then burning them to DVD.
This is a great way to give out nice presents without much of an investment. But depending on the length of the show, the resolution if the photos and other things I have found that the preview function in Nero is just not enough to rely on. You really need to see them on the TV, especially with the large screen TVs now available.
The only problem is, after making the DVD and for some reason you want to make a change to the show, well, you already have created the DVD.
So you have to trash it and make another. This can get expensive.