Many units use the force of the user pushing the tray closed and others use the eject button for that and NOT to close the tray. This often jams the tray. Many units have a small pin hole on the front panel to force a manual ejection, best attempted when the onit is on. A paper clip inserted should push a small ever to to release the tray lock and the tray should pop out. If this is a bare disk opening, things get more difficult but can have a spring loaded door covering the true face plate of the drive. If you're not prepared to take the unit apart to get the disk out, a service center would cost the price of a new unit. Plus the cost of a new disk if you can't get the old one out or you damage it doing so.
I have a Bose Lifestyle System (25?).
I was playing a DVD and when I finished, I pressed the open button and the tray does not eject.
I tried turning the unit off and on but the display just shows "opening .."
Any ideas on how to get the DVD out and what the problem may be?