Question regarding UFO brakes

[Kevin Rufino]

This may be a dumb question, but is there any trick to removing the UFO 
rotors?  This is the first UFO brake job for me.  I got the inboard pad 
off with little trouble, then removed to screw from the rotor; but could 
not get the rotor off.  Are you just supposed to be able to pull the 
rotor off?  I haven't had a chance to pick up a Bentley, so I was 
following the brake section from www.quattro123.com. It really felt like 
I was missing a step.  No matter how much I wiggled and pulled, the 
rotor did not seem to want to clear the lip of the hub.  It also did not 
help that I was attempting this from the not really level parking lot of 
my apartment complex.  If anyone would shed some light on this, I would 
greatly appreciate it.  Thanks.

Kevin