I am using DVDLab Pro to reauthor the 24 TV series to reduce the number of episodes from 4 to 3 so they will fit on a DVD5. My input is separate episode files created by DVDShrink each containing chapters and english subtitles. DVDLab Pro does not recognize the chapters contained in the input file although the markers remain in the files. Apparently the chapter info is not written to the output IFO files. WINDVD will play the files ok but chapters are not shown on the chapter menu even though I can sequentially access chapters by pressing the Next Chapter button. Subtitles are written to the output file but the color is changed from white to RED or sometimes GREEN.
My questions are:
1) How can I get DVDLab Pro to recognize the chapters contained in the input files?
2) How can I retain the original white subtitles?

Thanks in advance for any guidance with this problem.