Remote Buddy is the only application available that allows its users 
to issue emulated Apple Remote events. Its feature-complete Apple IR 
Receiver emulation is a unique feature you won't find in any other 
product.

With regards to DVD Player:

To support the wealth of functionality and hardware as well as being 
able to offer the greatest possible freedom for the user to adapt the 
function of each button to his personal needs, Remote Buddy *has* to 
rely on AppleScript to control DVD Player. Why?

a) Just handing Apple Remote events through, for example, wouldn't 
allow the free mapping of actions to buttons Remote Buddy is offering. 
b) The same goes for just "releasing" the Apple IR receiver (and 
returning control to OS X built-in support) - that'd rely on the 
existance of an Apple IR receiver on each Mac.

Both a) and b) would limit users in how they can use their remote 
control. Mapping f.ex. "Play (hold)" to "Toggle fullscreen" or "Eject 
CD/DVD" wouldn't work in either of both scenarios. It'd *always* 
trigger the built-in OS X behaviour for a long Play button press, 
which is to put the system to sleep. You'd effectively loose a number 
of buttons that you could otherwhise put to use for things useful in 
that context.

However, if you combine RB's flexibility to freely configure the 
action for each button with Remote Buddy's Apple Remote event 
emulation, you can f.ex.

1) forward the button events for just a selection of buttons (f.ex. 
just the "left" and "right" buttons), by selecting the respective 
actions from the "Virtual Remote” (in Prefs > Mapping > DVD Player, 
two clicks and a bit of mouse movement) and .. 
2) .. mix them with other available actions (like "Toggle 
fullscreen") ..

and keep all benefits :-)

Since I can't reproduce what you report: if you try above, please let 
me know about the result. Please also let me know if you see any 
change with the next RB update. Thanks in advance.

Best regards, 
Felix Schwarz