If you dont have a warrenty to worry about just pop off the cover.
Most players will have two screws holding down a plate right across the dvd. You can just take them out and lift out the dvd. Yhen put it back together. Some Like mine for some idiotic reason are one solid piece inside in that case carfully push down on the dvd to nock it off the top then eject it.
PS the player can be on when you do this but have the dvd be STOP'd so the player isn't trying to read it.
cas
July 2004