The CHD format was originally created by the developers of the MAME (Multiple Arcade Machine Emulator) project. It was designed as a way to compress large hard drives and CD-ROM data from arcade machines into a single, manageable file.
used for CD-based games like those for the Sony PlayStation (PSX)
Place chdman.exe in a folder with your bin / cue files. chd psx roms
For low-powered devices like the Raspberry Pi, older Android phones, or retro handheld consoles (like Anbernic or Miyoo devices), PCSX ReArmed is the go-to core. It handles CHD files smoothly, saving precious space on your MicroSD card. How to Handle Multi-Disc Games in CHD Format
A standard PSX dump usually consists of at least two files: a .bin file (the data) and a .cue file (the text sheet that tells the emulator how to read the tracks). Games with separate audio tracks can have dozens of BIN files for a single game. The CHD format was originally created by the
Subreddits like r/Roms maintain updated lists of curated, verified CHD sets for various regions.
Many PSX games come as multiple .bin tracks + a .cue sheet. Managing these can be messy. CHD bundles everything into one neat file. For low-powered devices like the Raspberry Pi, older
. Originally designed for MAME to store arcade hard drive data, it is now widely supported by major emulators like DuckStation PCSX ReARMed Beetle PSX The Verdict: Is CHD Worth It?
For retro gaming enthusiasts, CHD (Compressed Hunks of Data)