No. This is what Nero has to say:
Sorry that old Nero 6 does not support the Windows 8 system, Nero supports Windows 8 as of Nero 12. Nero does not plan to add Windows 8 support for any older versions.
For our long-time loyal Nero customers using an older Nero version than Nero 9 Reloaded, we recommend upgrading to our latest version Nero 12!
As you already own a previous version of Nero, we offer the upgrade at a reduced price.