The good news is. The firmware update from the manufacturer's site fixes the issue and I had been no more failures. Interestingly Weis the firmware from the manufacturer's site had the same version number as the Factory Defaults. But this can not be, because the installation of the firmware has resolved the issue. I have this behavior the way with two of these burners tried with the same result.
So if you have any problems, then you attracts Firmwar from the manufacturer's site and do not be put off by the firmware version number.