What you say makes sense. However, does MESS run on UNIX, or is it easily portable to that platform? If not I'll stick to fMSX for my games for a while, and check in upon MESS every now and then. To think of it... I actually saw a reference to MESS on a website once, can't remember which. The screenshots were cool :) Furthermore, Marat's license doesn't really prohibit your changing the code, he simply states that he wishes to be notified when you do so, and also that you may not use his products commercially (i.e. e.g. sell it), which I find perfectly acceptable. So far I've had to change very little in his distributions of fMSX. Version 2.3 runs fine on my systems. However, I agree with you that a free software implementation would be more useful. Please note the difference between Open Source and Free Software (take a look at Richard Stallman's page for that, there are references to it everywhere). Also, note that the GNU Public License (version 2) isn't entirely "burnproof", there are loopholes in it, but it's a good way to start. Kind regards, Martin. -- For info, see http://www.stack.nl/~wynke/MSX/listinfo.html