During some job experiences and projects, I interested in Dvd Authoring (creation of interactive dvd).
So I was able to get advanced knowledge in:
Sound Encoding (Dolby AC3, DTS...)
Streams optimisation for dvd of several formats
Menus creation (simple or animated)
GPRM, SPRM management (To create interactive games, advanced functions...)
DVD-ROM, autorun, Interactive ContentInterActual
I can do DVD Authoring under(but not only) Sonic Scenarist
, Adobe Encore DVD
, Dvd Lab
And, as well, giving advice about software for your project.