My DVD detects a CD but cannot play it

My DVD player is able to detect a CD but cannot play it. I have tried many things including lowering the resolution. This is all to no positive results. There is something that I have always noted every time I log on to my computer and perhaps it may explain my problem; I keep getting a message that my ccregvfy.exe file has a problem. Could this be connected to the problem with the DVD? Whether yes or not, please help me deal with the problem.
