Was going to buy a 9" TV w/VCR and travel bag for our upcoming trip buy with the price of portable DVD players coming down thought this might be an option. They are much smaller and you can get a 7"-9" screen. Has anyone used one of these in their car? How can you secure them so three kids can see the screen? How is the sound quality - most I have seen only have one or two headphone jacks, I need three - any ideas? Thanks.