Befoe spieling out the doomsday message to people, perhaps you should look other ways than straight at a problem. I've heard that certain dvd players may crash when it comes to certain dvd menus.
1 example I have of this is Finding Nemo on my Sony DVPS-7700. I was looking hrough the extras disc for a little bit and then tried to play the movie disc, but it wouldn't load the menu up. So I put a ifferent dvd movie in, which played fine and then put the Nemo movie disc back in and it worked.
See if that dvd of yours that is causing problems plays on other dvd players. If it does then it's most likely a firmware issue with your DVD Player.
But if it doesn't play on other dvd players, it may be the settings you placed for your dvd menu if you re-authored the disc.