let me give you an example...
I brough home 4 CDs (i am not telling the contents) and wanted to make a copy out of it.
But suddenly, Nero Express 6 suddenly go "tarik harga" (means refuse to cooperate)..
I put in both (destination and source CDs) to the proper tray, and then chose "copy CD".
Guess what error message I get ?
Then instead of doing "Copy CD", I perform "Data CD" by writting a total data of size > 400MB into the supposedly raped CD (those that was labeled as 356MB only).. then it went!
Thus, nothing wrong with the CDs.
Without putting much intelligence thought over it, as I was kind of busy(with backlogs).. I decided to uninstall and then reinstall Nero again.
And guess what.. it worked as normal!
The last time I had a "Copy CD" problem was one year ago. Amazing.