FYI: Arcade Authenticity
This is to clear up any possible misundertandings or miscomprehensions about what this term means. Arcade authentic does not mean a method of creating image representations according to some industry standard. The term is purely a general inference to the way any particular game - that is to say, any particular game cabinet a person experienced - appeared to operate. More specifically, the way YOU saw the game operate. This is what is sought after by 'purists'. It has nothing to do, inherently, with the image quality, in any particular case or set of cases, but rather the qualities of the image. The subjective part is in whether someone prefers what they experienced with the original hardware, or if they prefer a more modern rendition of a game's graphics, etc.