pak's because of features such as browsing and inserting more stuff without having to pack thewhole thing again, but be careful when dragging files out because it moves them out, not copies, and will cause Quake to crash if it can't find a required file. I really reccomend getting PakExplorer.This great little utility is better for creating. PakExplorer will make files lower-case automatically. pak file with capital letters but Quake won't run it. pak filem then all the folders and files must begin with lower-case letters. That waseasy was'nt it? Note that if you choose to create a. Aftercreating all the files you want to use for Quake, put them in theproper directory and then use AdQuedit,and get the Manuel,select the root directory and go to File>Create Pack. Just download and execute my Setup Batch Filewhich sets up Quake for running add-ons easily.