File Extension Library

.CHD File Extension

  • Developer by: The MAME Team
  • Category: Game Files
  • Format: Binary

What is an .CHD file?

.CHD file extension is created by The MAME Team. .CHD has been classified as Game Files. The format of .CHD file is Binary.

.CHD is MAME Hard Disk Image

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.

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, a CHD file named mygame.chd, and a ROM directory Roms, emulators commonly use the following convention:

  • /Roms/
  • /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.

List of all softwares that can open the MAME Hard Disk Image

How to Open .CHD file on different platforms

Open .CHD File on Windows

  • Right-click a .CHD
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .CHD file and Select check box "Always use this app to open .CHD files" Press "Ok"

Open .CHD File on Mac

  • Right-click (or Ctrl + Left-click) the .CHD file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .CHD File on Linux

Right click on the .CHD file, choose "Open with" and select a program from the list above

Open .CHD File on iPhone

Select a file. If you don't see an application to open the .CHD file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .CHD File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .CHD files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .CHD files

  1. You need to update the application that you normally use to open .CHD files. Only the latest version of the software supports the current .CHD file format
  2. You need to check the .CHD file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)