DVD tray won't open
Look for a small pin hole in the front of the DVD player. Insert a pin into the hole to open the tray.
Also try right clicking the DVD icon, click 'eject', then insert the pin into the hole.
If the door only opens partially, grab it and pull it open. Then insert a blank DVD into the tray, then see if the tray will open automatically with the disk in the tray. If so, then keep a DVD in the tray at all times.
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