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1g1r Redump Snk Neo Geo Cd New [upd] <1080p 8K>

1G1R Redump — SNK Neo Geo CD (New Dump) — Quick Guide

Part 7: The Future – CHD and the New Compression Standard

The final piece of the "new" puzzle is CHD (Compressed Hunks of Data) . Originally designed for MAME (CHD v5), the format now supports CD images perfectly.

The new 2025 recommentation for 1G1R Neo Geo CD is:

1. Keep the Redump BIN/CUE.
2. Convert to CHD using chdman (via MAME tools).
3. Store Game.chd in your 1G1R folder.

Why? Because CHD compresses the CD audio by 50-70% with zero quality loss (lossless compression). It also strips the need for multiple CUE files.

Result: The entire Neo Geo CD 1G1R set (approx 120 unique games) shrinks from ~90GB to ~35GB. 1g1r redump snk neo geo cd new

The State of the Library

The Neo Geo CD library is small but mighty. It consists of fighting games and arcade ports that defined the 90s.

When applying the 1G1R filter to a Redump set, you end up with a lean collection of classics like:

• Samurai Shodown RPG (A highly sought-after title never released on cartridge in the west)
• The Last Blade
• Metal Slug
• King of Fighters '96 and '97

The "New" aspect of preservation is currently focused on ensuring that the distinct CD audio tracks (which often included arranged soundtracks superior to the cartridge versions) remain perfectly synced with the game data. 1G1R Redump — SNK Neo Geo CD (New

1. Introduction: The Neo Geo CD Conundrum

The SNK Neo Geo CD (released 1994-1997) occupies a unique space in retro gaming. It offered cheaper media (CDs vs. $300+ cartridges) and Redbook audio CD soundtracks, but at the cost of excruciating loading times. For archivists, however, it presents a specific challenge: disc-based systems require perfect 1:1 copies, and the Neo Geo CD had multiple regional variants, revisions, and even different disc formats (CD, CDZ).

The 1G1R (One Game, One ROM) principle—famously applied to No-Intro cartridge sets—becomes complex when applied to Redump optical media. This write-up explains how to build a Redump 1G1R Neo Geo CD set that is both space-efficient and functionally complete for emulation (e.g., NeoCD, RetroArch, MAME, or a MiSTer core).

The "New" Redump Era (2020-Present)

The "new" 1G1R movement fixes all this. Thanks to modern dumping hardware (like the Plextor PX-760 or the DIC UI), the Redump community has re-verified the entire Neo Geo CD library. Keep the Redump BIN/CUE

• 100% verification: Every disc in the new set matches a retail counterpart.
• Proper BIN/CUE: No MP3s. Everything is lossless, with correct track indices.
• Load Time Hacks (Optional): While not strictly "Redump," the 1G1R community is now sharing patched versions that reduce load times (RIP CD loading) while keeping the Redump audio intact.

Part 2: The SNK Neo Geo CD Library – Size and Scope

To understand the 1G1R scale, you need to know what you are collecting.

• Total Redump Verified Discs: Approximately 97 discs (including variants).
• Total 1G1R "Unique" Games: Closer to 85 unique titles.

Why the difference? Some games have two discs (like Fatal Fury Special or Art of Fighting 3 had CD audio reprints). A 1G1R set removes the duplicate "alternate print" discs while keeping the essential unique games.

Optimization for the "New" Set

1. Cue sheet embedding: Convert your "new" Redump BIN/CUE to CHD using chdman (included with MAME). Command: chdman createcd -i game.cue -o game.chd
2. Save states: Because the "new" set has perfect hash checks, save states work across different emulators.