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Version: 4.3


Convert your CD roms into a lossless compressed format.

Preferred format

CHD is the preferred format for SEGA CD, PS1, and PC Engine games. Sometimes you can get up to 50% smaller files!

CHD is a lossless compression format originally developed for MAME, for the hard-drive contents of certain arcade machines. It has since been used in several other emulators as a means of storing CD-ROM game data.
- RetroPie


  1. Extract chdman 0.251 anywhere

  2. Put your CUE/BIN images in the chdman folder

  3. Click on cue2chd and wait for it to finish

  4. Copy the resulting .chd files to the rom folder

Find additional guides for Mac and Linux here.