What (e.g., DuckStation, MiSTer FPGA, Steam Deck, RetroArch) do you plan to play these on? Share public link
Before using any PS1 1G1R set with an emulator, you must also obtain a valid PlayStation BIOS file. The BIOS is proprietary Sony firmware, and its distribution is legally restricted; users must dump it from their own original PlayStation console.
stands for "1 Game, 1 ROM" (or 1 Game, 1 ISO). It is a filtering method that parses a complete datfile (database file) and selects exactly one definitive version of each game based on a strict hierarchy of preferences you choose. For example, you can configure your filter to prefer the USA Release (v1.2), and if that does not exist, fall back to the European release, and then the Japanese release. Why Apply 1G1R to the Sony PlayStation?
It's also worth understanding how Redump compares to other preservation standards:
In this guide, we’ll explore how to curate the perfect PlayStation library that prioritizes quality, space efficiency, and historical accuracy. What is Redump? 1g1r redump sony playstation
The Ultimate Guide to 1G1R Redump Sets for Sony PlayStation (PS1)
I can provide specific command-line scripts or step-by-step configuration settings based on your setup. Share public link
(For games never released in the US; often includes English language options)
As of 2025, the Redump project continues to refine Sony PlayStation dumps. Recently, better dumping hardware (Plextor drives with specific firmware) has allowed the recovery of previously "undumpable" discs with mastering errors. What (e
Sony released over 150 official demo discs (Official U.S. PlayStation Magazine demos, Jampack, etc.). A pure Redump set includes them all. A strict 1G1R set usually excludes demos completely, or includes only "unique" demos that contain content not found in retail games.
Managing dozens of audio tracks per game makes 1G1R filtering messy.
The PlayStation library is filled with duplicates. A single game like Resident Evil might have a North American (USA) version, a European (PAL) version, a Japanese (NTSC-J) version, and several "Greatest Hits" or "Platinum" re-releases.
CHD shrinks PS1 games by roughly 30% to 50% using lossless compression. You lose zero data quality. stands for "1 Game, 1 ROM" (or 1 Game, 1 ISO)
: It automatically selects the latest revision (v1.1 over v1.0) of a title. Smart Filtering
Here is everything you need to know about creating, managing, and utilizing a 1G1R Redump set for the Sony PlayStation. Understanding the Core Concepts
One individual's work, , is a major modern contribution to the community. The 2024 update includes a massive 1.05TB set for the Sony PlayStation, split into USA, JAP, and EUR parts. Hearto states the goal is to have the "best, non altered, redump files archived for each game," using the bin/cue format for maximum compatibility. This project serves as a vital resource and a testament to the passion of preservation.