To remain within legal boundaries:
Android emulation (AetherSX2/NetherSX2) and older hardware setups. How to Compress PS2 ISOs to CHD highly compressed ps2 iso
Place your .ISO games into the same folder as the chdman.exe file. You can compress your own legally dumped backups
Popular in the early 2000s on file-sharing forums, "RIP" files achieve extreme compression by permanently deleting game assets. Hackers would remove downsampled audio, strip away full-motion videos (FMVs), or delete multiplayer modes entirely to fit games into tiny zip archives. This often causes game crashes and ruins the experience. Best Compressed Formats for PS2 Games Hackers would remove downsampled audio
You don't need to hunt for "highly compressed" downloads of questionable quality. You can compress your own legally dumped backups using these tools:
For faster multi-core compression, use:
This depends entirely on your use case. The following table summarizes the key differences to help you make an informed decision.