Hi Tournesol,
Eclipse is the name of the product which most DVD manufacturers use to verify / check masters about to go to replication.
Normally you have to pay for it. Some do it as a matter of course.
http://www.eclipsedata.com/
When I mean abstraction. There are 2 types of DVD Authoring Apps.
1. Spec ie Toshiba, Vizaro and Sonic. These apps run with you "almost" programming the DVD directly.
2. Abstraction, DVDSP, Encore, Ulead, etc etc. These system provide a much easier interface for the non technically minded of us. But as such there is a layer of coding between you and the DVD. As these systems have to accomodate for every outcome. Sometimes this "extra code" causes DVD players to get lost or sometimes the code is just not what you intended. When you think about it, it's pretty good what they can do. But if you have this, plus bugs in the simulator, bugs in DVD Player (Mac One)and manufacturers interpretation of the Spec. You can get yourself into a whole bunch of trouble before you start.
If this has made it worse let me know.