1g1r - Redump - Sony - Playstation Jun 2026

Software tools (like RomCenter or CLRMamePro) use "DAT" files to understand which games are related.

The 1G1R philosophy streamlines this. It aims to curate a folder containing only one instance of a distinct game, selecting the "best" or most "preferred" version—usually the USA release for English speakers—while discarding duplicates, revisions, and regional variations unless they offer distinct content. 1G1R - Redump - Sony - PlayStation

If a game exists in USA, Europe, and Japan versions, 1G1R selects only one based on user preference. Software tools (like RomCenter or CLRMamePro) use "DAT"

To build your own 1G1R set from a raw Redump collection, you typically use a DAT manager or a dedicated tool: 1g1r [RomCenter wiki] and Japan versions