Home : File Types : CHD File

.CHD File Extension

File TypeMAME Hard Disk Image

DeveloperThe MAME Team
3.7 (20 Votes)
CategoryGame Files

What is a CHD file?

Arcade game disk image used by some MAME (Multiple Arcade Machine Emulator) emulator games; stores a compressed version of the entire contents of an arcade machine's hard disk; used in conjunction with a game ROM to load the game.

More Information

To load a MAME arcade game, you typically need to place the CHD file in a directory has the same name as the ROM's filename prefix (some emulators use a single generic directory for all CHD files). For example, for a ROM with the filename mygame.zip, a CHD file named mygame.chd, and a ROM directory Roms, emulators commonly use the following convention:

  • /Roms/mygame.zip
  • /Roms/mygame/mygame.chd
Some CHD files are large in size due to the original size of the arcade hard disk. Therefore, even though CHD files are compressed, they may still require large amounts of disk space.

Open over 400 file formats with File Viewer Plus.

Programs that open CHD files

Free Trial
Updated 11/29/2010

About CHD Files

Our goal is to help you understand what a file with a *.chd suffix is and how to open it.

The MAME Hard Disk Image file type, file format description, and Mac and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

If you would like to suggest any additions or updates to this page, please let us know.