Hey people help me out all the time so its time I try and help you
Download a program called "IFOEDIT" from the tools section......
Use TMPGenc to demux the mpeg-2 file into a .m2v and .mpa then load those files into IFOEDIT in the "author new dvd" tab (north part of the screen)
Once it does that Close out of IFO and reopen it......south of the page select create IFO's....and then select your first VTS file.......once that is done put all the new information in a folder called "VIDEO_TS" and put that folder into nero on the udp/udf not sure...section and burn it as slowly as you can "on a DVD-RW or DVD+RW" don't use final R discs until you are sure it works
hope This helps ya out ....estamated complete time about 1-2 hours