I have tried a lot of programs to do the job and nearly everyone recommended by folk here. I have to say, a lot of tripe has been recommended on here such as WinAVI, DVD Santa and so forth. There is always some fault like audio out of sync or some other stupid thing.
However, there is one program which is a gem and has worked successfully 100% of the time and I mean its going most days of the week. That program is ConvertXtoDvd and its money well spent. No fancy UI, its simple and does a hell of a job.
Get it.