a single stage recording system. I mean at it's most fundamental level, two stage recording (mix then master) contains one stage more than one might naively believe is necessary. What exactly prevents a company from making some kind of system that would integrate the step of mastering? The question does not even have to take the success of current methods into consideration. I mean such a system might well be of lesser quality than taking a mix to a fully equipped mastering house, but then such a product would appeal to hobbyists and home recording enthousiasts.