Random Tech: Take a Screenshot of DVD Player in OS X

Ever since OS X came out, Apple made sure that it would not be possible to take a screenshot of a DVD. When DVD Player is open, you can't capture the screen with Grab. Command-Shift-3 and Command-Shift-4 both do not work when DVD Player is open. This makes no sense at all (If you own the DVD, you should have every right to do whatever you want with it! But that's another story). However, Apple for