Boy did I open a can of worms with the shutoff thing..

Really I have to think about it, mean, does the AC inverter use power even though the comp is off? Or is it also wise to cut power to it?
Otherwise, program is coming alog pretty good. So far I have 3 functions planned out, being MP3, Playlist, CD Player... I DO want to build in more for other formats as well, such as DVD is a big one. But how can I control the DVD player software via M.Car (program name)..
Divx will not be much of a problem as I can control avi playback direct from the app, and possibly even have multi parts play through without stopping.
So at this second I'm left with this. Are there API's out there for popular DVD programs?
Scott--