Recording mgp file to DVD_VIDEO format

I wish to copy a recorded mpg tv program to dvd in DVD_Video format using Nero vision in Nero 8 but when I try, I get the following error message " Unable to prepare data for recording. Prepare session failed. Transcoding of videos failed."
Has anyone any idea what that means or what I am doing wrong
I recorded the file with Hauppauge DVB-T(NOVA-TD) card

You cannot “copy” that to dvd, you first have to transcode it into a proper DVD compliant format.

Try tmpgenc or super.