I installed a dvd into my imac and everytime I want to watch it I have to eject the dvd then reinsert it for it to start to play.Is there a way I can get the dvd to play without ejecting it first.When I right click on the icon that appears on my desktop it doesnt give me an option to play the disc.and if I click on the icon it opens two folders that are associated with the dvd but none of the folders will play the dvd.But if I eject it and reinstall it the movie starts to play instantly.Any help would be appriciated.