NERO WAS SHOWING two things at CeBIT, one was a great thing, the other potentially interesting. One requires hardware, the other doesn't require Windows.
The far more interesting of the two is coming this May, it is NeroLinux V3. It is not the full everything and the kitchen sink encode and decode suite, just the two main burning apps, and probably will cost the same $20 as the current one. It catches the Linux version up with the Windows one with the same burn engine.
http://www.linuxlinks.com/portal/news/article.php?story=20070326123504867