In a complete reference set, CHDs are usually provided in separate folders named after the game. Unlike ROMs, CHDs are not zipped. They sit in their own subdirectory within your ROMs folder.
. It is widely used by performance-conscious emulators and frontend users, such as those on RetroArch or older hardware like the Raspberry Pi, because it represents a stable "snapshot" before later MAME versions significantly increased system requirements for accuracy Libretro Forums mame 2014 reference set mame 0159 roms chds top
Because of this constant shifting, a ROM that works on MAME version 0.150 might not work on version 0.160. In a complete reference set, CHDs are usually
MAME ROMs, or Read-Only Memory images, are files that contain the data from arcade game cartridges or boards. These files are essential for playing arcade games on MAME, as they contain the game's code, graphics, and sound effects. MAME 0.159 ROMs refer to a specific version of the ROMs that are compatible with the MAME 0.159 emulator. These files are essential for playing arcade games