1) Open the directory in VobBlanker, set the new destination directory and click process ! Then watch the result in the new directory with some software DVD player, if it behavies as expected try to burn it.
2) If it doesn't work, open the directory in DVDShrink, set the result type to DVD9 in the preferences dialog box, and click on Backup. Then watch the result in the new directory with some software DVD player, if it behavies as expected try to burn it.
3) If it didn't work open FixVTS, and "drag-and-drop" to it's window the file VIDEO_TS.VOB, select "FULL DVD" and click OK. Do NOT select "No backup" !!!!!!!!!!!!!!!!!!!!!!!!
The original directory will be in FixVTS_Backup, the new files will be in the main VIDEO_TS directory. Try to watch it now, if it's OK try to burn it.
Usually at least one of these programs work for me (all are freeware). If it still doesn't work, I would redo the whole DVD, which is a LOT of work, so first try these steps and post here the results.
AND - what do you have on the DVD, only the film or also some bonus stuff ?