I am having a Dell system. The model of system that I have is Dell 2400 something. There is a problem with the CD/DVD here. It is not appearing in My Computer. I am trying to copy some audio files. But somehow it fails to work. It is not working properly. The CD just did not open. The CD/DVD drive icon is just not visible in My Computer. I am not able to understand the problem here. I had just used the same last week and it worked fine. There was no issue at all.