For single PC, go with Nero Ultra.
The Enterprise Edition is designed for business IT use. Backing up PCs and servers, rolling out software.
While the Enterprise Edition does have a few useful features, all in all, the Ultra version is a better choice for a single PC.
Unless, all you do with your burner is system backups.
Nero Enterprise Edition
The Solution For System Administrators!
Keep workstations and servers running with the
CD/DVD recording solution for System Administrators and Webmasters. Nero's advanced technology has been optimized for use on workstations and servers designed around Intel's 32 Bit and 64 Bit processors.
Please note that AMD-64 BIT is now supported by the Nero 6 Ultra Edition and installment of the Enterprise Edition is not required.Recommend that you download the latest Nero 6 Ultra Edition trial version.
or if you own Nero 5.5,
great value for the euro/£25 + till the 31st December. click here for Upgrade now and save 50%
Nero 6 Reloaded click here Great value for me.:)