I'm looking to find out exactly why Hollywood discs will play in any player, but the ones we burn on our computers (i.e. DVD-R for example) need to play on decks that are capable of -R compatibility.... Can anyone explain an "Authoring" disc? I always thought that "Authoring" discs were what Hollywood used to make their DVD's so that they play in any DVD player (i.e. no -R or +R worries). But I'm seeing DVD-R "Authoring" discs online. What's the deal? If I'm incorrect here, what does Hollywood do to their DVD's to make them playable in any possible DVD player? What makes a DVD-R only compatible on a player with DVD-R support? I assumed it had to do with some kind of computer code written onto the disc that makes it different than a "Hollywood" disc. Is that correct? What's the deal?