How to hear/view files with extensions .VOB, .IFO, and .BUP on a Mac A friend of mine just got a new MacBook and is trying to look at some files she had from her old Wintel boxen with .VOB, .IFO, and .BUP file extensions.  What Mac conversion or viewing utility or app should be used?
I'm fairly sure these are files from a DVD movie disc. 

Open the default DVD player app, choice, File > Open DVD Media and select the folder in which the files are located (not the file itself, the app will combine them all and if all goes well, play the movie).