Auto DVD authoring: resolution

[AlNipper49]

We have a DVD player in the car that is the greatest invention since whenever.  I give two craps about talking to my kids on long trips: I want them quiet.
 
So I've made some DVDs foe the car but they end up getting scratched and stuff.  This is no big deal, I just make more.  I've also done things like hooked up a mobile Plex system, but this always ends up needing my attention and I don't want to give anything that doesn't absolutely need attention any attention.
 
A thought struck me - why the hell amd I just putting one movie per DVD on there?  The resolution on those TVs is such crap I should be able to really downgrade it, right?  That way I could also put like 5 movies per DVD on there so that we truly could let the kids pick and choose what they wanted for a, say, five hour drive.
 
Am I thinking in the right way?  I know nothing about video compression, etc.

 

[ifmanis5]

If you get into multiple movies per disc then you're into the world of making menus and buttons and how would they access those buttons without a remote? Not worth the trouble.

 

[Billy Jo Robidoux]

Yeah, you're better off just building a soundproof privacy wall between the front and back seats.  Lock the power windows, engage the child door locks, problem solved.

 

[AlNipper49]

If you get into multiple movies per disc then you're into the world of making menus and buttons and how would they access those buttons without a remote? Not worth the trouble.

 
That would have previously been an issue bit at this point my 8 year old can navigate the menus easily enough.  There is a remote for him to do that with...

 

[SumnerH]

http://www.bombono.org/