I would be more than happy to release in both formats natively but I do not have access to a MAC to test or convert. I did however just release the 57'Chevy in a .sit but I don't know what conversions it will take for a MAC user to get it working. Brycetech, I understand your fear of .Exe files but any of my Freestuff will be in a self installing zip executable (If you don't want to run it just right click and say open in WinZip). Everytime I have released anything in the past in .zip format I have recieved hundreds of emails asking why it didn't work. It has always been because they didn't get the files in their proper locations that they needed to be to work. With well over 1000 downloads of the 57' Chevy on just the first day I have not recieved a single "it doesn't work" or "where does such&such file go?"