how to repair bad vob file ??

hi i have a movie with a bad vts_01_5.vob and cant copy the disk or burn it with dvdshrink -
i trided dycrypter and nero and clone2 - i used dvdsanta and came out with no sound - - was hoping to make one file with nero and then burn - nero keeps getting stuck and freezes - works only with small files - is there any program to repair or make a new vob file from the bad one - so i can make a new disk
i tried to copy the vob files from the movie and it wont let me because the last vob file has errors
the movie plays fine till the very end when the words come up - how can i edit out those chapters and make a new copy with out them - ??

any help would be great
thanks