Here’s a concise guide to creating a set from PS2 ROMs (typically ISO, BIN/CUE, or other disc images) for use with emulators like PCSX2.
chdman extractcd -i "game.chd" -o "game.iso" ps2 chd roms install
For this guide, we'll focus on PCSX2.
Now for the main event. Installing a CHD is not like installing a program. You do not install it onto your PC; you point the emulator to the folder where the CHD lives. full CHD (Compressed Hunks of Data) Here’s a
Modern emulators like and AetherSX2 (for Android) natively support CHD. Because the data is compressed in "hunks," emulators can actually read the necessary data more efficiently than parsing a raw, uncompressed ISO. While the CPU has to do a tiny amount of work to decompress the data on the fly, the reduction in I/O bandwidth (reading from the hard drive) often results in smoother performance and faster loading screens. chdman – part of MAME tools