If the shelf won't open, it may be stuck with debris ; if the shelf opens, but will not read a cd or play, then see if the driver needs to be updated...........look in your owners manual, or online at a manual if you are one who has no manual.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.