I am using Nero 6 Ultra w/ Nero Recode 188.8.131.52. I have never had a problem with this program until now. I use Any DVD to decode a movie and when I have to switch out the dvd's I get the error "Required VTS_17_O.VOB not present." Can some one help me on this. I have backed up many other movies with no problem but now this has come up. I apologize if this has been talked about but when I did a search I could not find the answer.