As an avid poser user I find this to be an excellent tool for "adjusting" my runtime folders (I have 4 of them), and for replacing corrupted .png files ( as they often die a terrible death at the hands of Poser sometimes).. Now if I hear you correctly I can maake .rsr's from .pngs.. That is fantastic as that would give me a way to make and store copies of the .rsr for the next time because a lot of content comes without the .rsr files now days...I found one problem with the last version. It did NOT combine ALL of my files from one runtime to another. I am extremely glad that I checked to see if it had or else I would have had to replace about 12 Gigs of content. I do keep CD backups of all my stuff but finding which ones I had lost and finding which CD they were on and then reinstalling them would have been , if not impossible, a real pain in the backside...my recommendation is to always check your transfers before you delete your files.. That said I do have nothing else but praaise for the function of this small Poser Utility.. It far exceeds the functions of it's competition(RSR-2-png convertors of which there are 2 or 3 around and most are OLD OLD OLD...keep up the good work and if you add a few more features I would consider even paying for this.. Poser utilities are like hens teeth here although you find MANY of them on the Art gallery stores around the Internet MOST are PC only.. it is supremely excellent to find someone like yourself making Poser utilities for the Mac.. my hat is off to you and if you have a mailing list I can get onto I would find being updated along the way PRICELESS...I am also spreading the word to a LOT of sites and if you contact me I will be glad to tell you a large number of places (that are art related specifically to put up ads for this... I would even be willing to make you a banner for your ad...