In 2021, the retro gaming community reached a turning point in how PlayStation 1 (PSX) libraries were managed. For years, collectors were burdened by "BIN/CUE" sets—multi-file messes where a single game like Ridge Racer could consist of dozens of individual tracks and a messy sheet to tie them together. The "story" of CHD (Compressed Hunks of Data)
For PSX games, the benefits are staggering: chd psx roms 2021
While CHD support existed prior to 2021, several factors converged during this year to make it the dominant format: In 2021, the retro gaming community reached a
chdman.exe in the folder with your BIN/CUE files.chdman createcd -i "game.cue" -o "game.chd"
Most modern emulators have native support for CHD, so you don't need to decompress them to play: Download the latest MAME tools (mame0201
Here are some of the top CHD PSX ROMs in 2021:
Prior to this, many "scene" releases were messy, with mismatched .bin files and incorrect naming. The push in 2021 was toward "Single File" sets. The community began releasing full PSX libraries where every game was converted to CHD, verified against the Redump database. This solved the headache of managing multi-track games (where one game might have a .cue file and five different .bin audio tracks). With CHD, everything is merged into one file.
Here is a detailed look at what CHD files are, why 2021 was a pivotal year for them, and how they changed the way users store and play PSX games.