Are you using Windows XP?
If so, have you downloaded the application updates from Windows Update?
You must download and install the updates to XP from Microsoft for Easy CD Creator to function.
Then, you need 2 updates from Roxio.
Roxio has explicite instructions for installing the updates. Follow them exactly. That should take care of your problem.
If your OS in Windows 98 or Me, you need to make sure that you do not have Windows UDF (CD-RW) reader installed. There is a conflict between Easy CD 5 and the native Windows UDF reader.
You will need to uninstall Easy CD Creator and the Windows UDF reader.
Then, reboot and install Easy CD Creator.
Then the updates for your OS from Roxio.
That should eliminate the error.
There are further details for both issues in the knowedge base at Roxio's web site.