Other then what has already been mentioned, my two biggest things are this: File list in the readme file. That way if I ever run into a "missing" file, I can consult the readme (if I can find it) and see if it was included and where the heck it went. The rsr vs. png thing has already been addressed. It is very important ;) My BIGGEST peeve is version errors...absolutely no reason for them. I am on P4 and whether it is a character, prop or pose/mat file all you need to do to prevent this is make sure that the version number is at either 3.0 or 4.0. Anything higher then that and you get that stupid, freaking, crash making version error. BIG PET PEEVE!!!! I cannot tell you how many products I have installed that I am going to have to go through and fix myself, I should NOT have to do this. I paid money for the products, I should not have to go through and correct these. If the merchants don't know about this, I would hope that the beta testers would report it when they run into it. Please make sure that whomever you have beta testing, you have enough testers that each version of Poser is covered. It will save you grief in the long run that is for sure :) Poser 4 is not as forgiving as ProPak for some things and what works in PP may not work correctly in Poser 4 believe it or not ;) Just had an example of that come up the other day while I was testing something. Great thread by the way and about time!! Pendy