Standard ROM sets, such as complete No-Intro or TOSEC sets, aim for absolute historical preservation. This means they include every single version of a game ever released. If you download a standard set for a console, a single game title might have 15 different files, including: The North American release (USA) The Japanese release (Japan) The European release (Europe) Beta versions and prototypes Revision 1, Revision 2, etc. Alternative language hacks or regional clones
A 1G1R manager evaluates these duplicates using an automated scoring script. It selects a single, primary file—usually the latest revised USA or World edition—and discards the rest. If a game was exclusive to Japan or Europe, it remains in the collection so that no unique content is lost. Key Features of Hearto's Collection Hearto-1g1r-collection