You generally have two paths to achieving 1G1R nirvana: The Manual Way (using tools) or The Smart Way (using pre-built lists).
Enable "1G1R mode" to remove clones (duplicates) and keep only the best regional parent.
If you simply download a complete "Romset," you will end up with ten copies of the same game. A 1G1R setup uses parent-clone filtering to ensure you only keep the "best" version of every game, typically prioritizing your preferred region and the most recent hardware revision. Why the Nintendo DS Needs 1G1R
You generally have two paths to achieving 1G1R nirvana: The Manual Way (using tools) or The Smart Way (using pre-built lists).
Enable "1G1R mode" to remove clones (duplicates) and keep only the best regional parent.
If you simply download a complete "Romset," you will end up with ten copies of the same game. A 1G1R setup uses parent-clone filtering to ensure you only keep the "best" version of every game, typically prioritizing your preferred region and the most recent hardware revision. Why the Nintendo DS Needs 1G1R