The difference between a CDROM and a DVD is not only in the type and size of the content. On CDs, there is written, usually the word CD and some order things. And, on a DVD, there is DVD written on it.
Although, the best way to tell is to put it in your computer and check the total size of the disc. DVD will show as 4.5 Gib or 8.7 Gib and CD will show as 690MB (more or less).
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.