[Help] burn karaoke dvd files in order

can someone please provide a simple tutorial on how to burn my karaoke files in order, so i can backup my karaoke dvd
i have both nero6 and ultraiso
the files must be burn in the same order of the original karaoke dvd to correctly back it up and work on my karaoke dvd
the image provided showed that the 3 dat files must be burn in between the audio_ts and video_ts folder