In the context of the , a 1G1R (One Game, One ROM) set is a curated collection of game files that eliminates redundancy by keeping only the "best" version of each title.
For Nintendo DS specifically, this means curating a clean set of (down from ~7,200+ in a full No-Intro dump). nintendo ds 1g1r
Use (command line) or RomVault (GUI) with filters: In the context of the , a 1G1R