You don't have to worry, it's only with Sapphire did Tobias deliberately try to make a counterfeit that could as closely as possible match an original. Everything else is marked with PCEWorks, and/or has different labeling (or it's a CD-R, like Space Fantasy Zone I think). I guess the somewhat exception is the PCE Rockman pressing of Bonknuts' NES2PCE hackulation port - that might've tricked some people into thinking it was somehow an authentic thing too.