Flying out to Hawaii in 3 weeks. Would like to use my new Toshiba portable DVD player on the 10 hours+ trip. If Delta doesn't shut down before then, we will be flying on a 767-400, which I've read has power at every seat (even in coach). Since my player has a DC 12-volt car cord, can I get away with just purchasing a little $12 adapter to connect the end of the car cord to the airline port? Are seat ports on all planes the same? Delta says they use "Empower" technology, does this mean anything special to my desired setup? Thanks.