We'll try to clear some doubts about this drop system.
DPP = Drop Per Player, the new drop system being implemented.
DPR = Drop Per Room, the original drop system that has always been in psobb.
DAR = Drop Anything Rate, the chance a monster has to drop an item or not (number between 0 and 100, this doesn't decide which item you get)
What is this new drop system?
This is a system that gives players individual drops.
What you see is yours, what others see is theirs, you don't see