CHD (Compressed Hunk of Data) is a file format used to store and compress game data, particularly for arcade and console games. CHD ROMs are essentially game data stored in this compressed format, making it easier to distribute and store large game files. For the PS2, CHD ROMs offer a convenient way to play games without the need for physical copies or complex setup.
For almost everyone else in 2025+, .
CHD saves disk space and keeps library tidy. ps2 chd roms