Two movies (KDVD) to one DVD-R ?
 

Hi there,
I have authored 2 movies (2 title sets), each movie has 2 VOB files, so I have VTS_01_1.VOB and VTS_01_2.VOB for the 1st movie, and another VTS_01_1.VOB and VTS_01_2.VOB for the 2nd movie. I muxed the VOBs by IFOEdit, because I need 2 selectable subtitles.

I understand that I can import the m2v (KDVD video stream) and ac3 files into DVD workshop or DVDit, but DVD workshop / DVDit (to my knowledge) is not capable to mux selectable subtitles. So, I have to mux it as VOB before I burn it.

The problem I have is that I don't know how to handle the IFO files. I don't need chapters for the moment but I want to use the "NEXT" button to jump to the 2nd movie when viewing in standalone DVD player. What should I do? Should I join all these 4 VOBs and then create a new IFO file? or should I rename the 2 sets VOB to VTS_01_1.VOB and VTS_01_2.VOB for the first movie; VTS_02_1.VOB and VTS_02_2.VOB for the 2nd movie, then create new IFO by IFOEdit?

Just a reminder, I need to use the "NEXT" button to jump to the 2nd movie. Thanks in advance!