chdman createdvd -hs 2048 -i game.iso -o game.chd

This comprehensive guide covers everything you need to know about getting Batman for the PSP in a highly compressed format, how compression works, and how to set it up perfectly on your device or PPSSPP emulator. Why Choose Highly Compressed Batman PSP Games?

If you own a real PSP with custom firmware (CFW), you can play CSO files directly from your Memory Stick. The PSP decompresses CSO files on the fly without requiring extra storage space.