pumeco wrote: "PRO-RENDER consists of .br5 setup files, compatible material presets, and documentation needed to describe the PRO-RENDER method of rendering." So what you are saying is that you have discovered undocumented Bryce5 render techniques/processes, and you are proposing to sell the knowledge along with accompanying Bryce files and presets. I see two related major obstacles to this being a viable product: 1/ The Bryce user community has a long history of free and open exchange of tips and techniques. It will quite likely be somewhat hostile to being charged for knowledge - especially if that knowledge is inspired by information already freely exchanged in the community... 2/ Once the knowledge, files and presets are released, they (or close variations) will very likely be openly exchanged - perfectly legally - within the community (especially given the above). As was discovered in the Poser community (and stressed by Curious Labs, the owners of the Poser program) you cannot copyright program settings. For example, Poser light sets are not copyrightable because they are purely program settings. This doesn't stop people selling packages consisting of program settings, and it doesn't stop people buying them. But there is absolutely nothing to stop anyone giving the settings away. The Poser user base is perhaps unique in having a great many people willing to pay for what they already own... If "PRO-RENDER" is merely inherent Bryce settings (and knowledge thereof), you cannot copyright it (nor patent it). There is nothing to stop you selling a package comprised of your knowledge of Bryce settings, plus Bryce files and Bryce presets using those settings - but likewise there is nothing to stop anyone posting the knowledge for free and releasing files and presets using those settings. The only copyrightable items in your product (as described by you) are the order of words in the documentation (but not the knowledge the words convey) and any original materials you might include within the files and presets. You ask if we can do this without "PRO-RENDER". The answer is almost certainly yes - as soon as you tell us how. Given what your proposed product consists of, and given that you probably cannot effectively control it, I suggest an alternative marketing strategy. Release the concept free of charge in the form of an online tutorial (with downloadable files) published on your website, along with a donation option. If you are the person clever enough to finally turn Bryce into a workable advanced renderer, then you can use this to promote yourself and your company. It would be excellent publicity. And I've no doubt Bryce users would be grateful. If the concept delivers as described, and with no major problems or limitations, I would gladly donate, say, 20 dollars - so long as I wasn't forced to. Rather than the possibility of resentment and hostility, there would be the certainty of respect and loyalty. Either way, you won't get rich with "PRO-RENDER". Please accept the above as it is intended - positive, constructive advice. :-)