Place the chdman.exe file and the CUE or ISO to CHD.bat script into the folder containing your PS2 ISOs. Run the batch file.
To help you with PS2 game ISOs, it's important to differentiate between downloading "highly compressed" files (which can be risky) and compressing your own ISOs for better performance and storage. Popular Compressed Formats for PS2 ps2 highly compressed games iso link
What are you planning to play these games on? (PC, Android phone, or an actual PS2 console?) What specific game are you trying to download first? Place the chdman
