Since you have the latest firmware it's almost safe to rule that out, however I did read that ocassionally Liteons have a memory lapse and you have to load the firmware again.
That said, can you provide some additional information.
Please confirm you are using AnyDVD V 126.96.36.199 and CloneDVD2 V188.8.131.52.
Please confirm in the past you sucessfully burned TDK DVD- media with older versions of ClonDVD2.
If the answer to both questions is yes, you can try uninstalling CloneDVD, then reinstalling it.
How far into the burn do you get before the error message appears?
Have you recently installed any new software that may be conflicting with CloneDVD?
Have you tried disabling all non essential software in startup such as Anti Virus programs.
In CloneDVD try lowering the write speed from the default of max to 4X.