Setup includes firmware update files for the Toshiba SD-R6012 drive.
What's new in firmware 1N34 and 1M34:
Resolves the issue where you always get 'data verification error' when writing on DVD-R/RW media with Record Now DX 4.xx and Toshiba SD-R6012 DVDRW drive.
How do you see the drive model and firmware revision?
Right click My Computer
In Computer Management screen click Storage in the left window pane
Click Libraries where you will see the removable drives
Right click TOSHIBA DVD-ROM SD-R6012 in the right window pane
Click Device Information tab
Read the line called Revision and check if it is 1N31 or 1M31