Just in case it isn't clear yet...
You can use DVD Architect to create DVDs for playing in domestic DVD players - this is DVD VIDEO format.
DVD ROMs are DVDs that can be read by computers. They could contain any types of files, just like your USB memory stick, floppy disk or hard drive. If you want a menu for your DVD ROM as described DVD Architect will NOT do this for you. I'm guessing there's some other software somewhere as it's a fairly simple piece of code to write.

EDIT: WHat am I on. Of course there's stuff available - the daddy being Macromedia/Adobe Director - but that's overkill. Google "Multimedia Authoring Software" (and possibly "Free")

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Tim