Trying to copy Gridiron Gang and get to the point of copying and get the following error required file VTS_14_o.VOB is not present. I'm using anydvd and nero 6 ultra. Also doing the same on Open Season. Used the trial version and copied everything I threw at it.
There have been a number of updates to Nero recently, including Nero 6. I suggest updating and trying again. For Open Season read http://forum.slysoft.com/showthread.php?t=885
Do step 1 from http://forum.slysoft.com/showthread.php?t=328 If that doesn't work, the original disc is bad. By the way, never use "rip video dvd to harddisk" except as a last resort when all else fails.