Our state says that navigational only! Otherwise it must be turned off. Passengers can do whatever, but if the DVD screen is visible to the driver, only navigational. Your buddy might be watching something interesting, and all of a sudden something really hilarious happens, you turn your head, only for a second, but that was one second your eyes werent on the road. Also, there a law about watching ****. Typically its an SUV problem, but lots of times I will watch other peoples shows, and since that makes it public, displying **** is indicent.