The mpeg files on a DVD have a .vob extension and that is why they have gotten associated with your DVD player. Associations should not affect the function of any program (including Vue), they simply tell the operating system what program to open when you double-click a file.....although you can run into problems with associations with internet related programs and viewers, but not a problem in this situation. Installing new programs (like the DVD player that came with your video card) can reassign your associations.