Use a free desktop tool like CHDMAN to convert your heavy, full-sized .ISO files into highly compressed .CHD files. Step 3: Transfer and Play
These are used for downloading; you must extract them to get the playable file. Best PS2 Emulators for Android ps2+iso+highly+compressed+for+android+verified
An older alternative often used for PSP, but CHD is generally superior for PS2 emulation on Android due to better compression ratios. Use a free desktop tool like CHDMAN to
Use this tool (part of the MAME project) on a PC to convert .iso to .chd . ps2+iso+highly+compressed+for+android+verified