Are you just copying the images to the DVD ? Are you using Windows XP ?? Have you tried do this with something like Nero ??? A good program that I have found that is relatively easy to use is FlipAlbum Pro. There is also Photo 2 VCD Studio 3, but there are many programs out there that do a good job as well.

You might find that when you are burning the DVD it isn't finalising the DVD and that might be what is causing the other computers to not be able to recognise the DVD. I know I can't use DVD-RW in one of my DVD players for the TV it doesn't recognise the DVD at all as being usuable, and on the others, depends on how I setup the DVD with Menus etc as well wether it works or not.

Have fun.