File Extension Library

.CHD File Extension

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

What are .CHD files and how to open them?

Can't open .CHD file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .CHD file.

What is a .CHD file extension?

.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 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.)