The trackwriter reported an error while reading the data from the source files. If you are recording data, make sure that all of the files in your CD layout are available (you can select Validate Layout under the File menu). There might also be a problem with the drive that is storing the temporary cache files.
Select Validate Layout from the File menu to verify the contents of your CD layout.
Use ScanDisk on the drive that contains the temporary folders.
Create a new CD layout.