merging to .ts files into one dvd

I have two sets of dvd files that I want to merge into one complete package but of course both folders contain the same named video files. I have ULead dvd workshop 2, dvd shrink and WinAVIvideo convertor and I am not sure if these will do what I am asking since I haven't been able to do it with those programs yet. If you have the answer please let me know :rolleyes:
thanks
Brent

Have you had a look through this site?

www.videohelp.com

It has many tutorials using a variety of programs including the ones you're using.

No I haven't but I will now. thanks.