DCEvolution has been updated with this news:

Because of the many downloads the last months we are forced to take all the Nero images offline. Instead of it we offer the cdi2nero program. This program can convert DiscJuggler images to perfect Nero images. Also you have the choice to make either a regular DAO disk or a TAO disk. Some burners can’t burn Dreamcast images in the DAO format. So in the end this is just even better than offering a Nero image.

We have tested and used the program for a long time and we had never any problems converting a DiscJuggler image. I’ve made a little tutorial how to use it, you can find it here. All the pages are updated with a link to this tutorial.