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The Steam Deck is essentially a Linux PC. CHD support works flawlessly in both the native Linux version of PCSX2 and the Windows version via Proton. Smaller file sizes mean you can fit more triple-A PS2 titles on your 64GB or 256GB SD cards.
: Unlike ZIP or 7Z, CHDs use "streaming decompression," meaning the emulator reads only the needed data on the fly, so there is no long wait time when starting a game.
chdman extractcd -i game.chd -o game.iso ps2 chd roms install
Disclaimer: This article discusses the technical process of installing CHD ROMs. We do not condone piracy. You should only create CHD files from physical PS2 discs you personally own.
This guide is for educational purposes. Under the DMCA, circumventing copy protection (which PS2 discs have) is illegal in many jurisdictions. However, formatting your personal backups for convenience falls into a grey area.
For PS2 game images, the legal approach is to create ISO (or CHD) backups from . Downloading copyrighted game ROMs from the internet without owning the original disc is generally considered copyright infringement in most jurisdictions. : The Steam Deck is essentially a Linux PC
Before we get into the installation process, let's address the elephant in the room: Why should you switch?
chdman (part of MAME)
Now for the main event—converting your PS2 ISOs to the CHD format. You have several methods to choose from, ranging from simple command-line operations to user-friendly batch scripts. : Unlike ZIP or 7Z, CHDs use "streaming
Modern versions of PCSX2 (v1.7.0 and newer) support CHD files natively.
Ensure you are using the latest "Nightly" build of PCSX2 or a recent version of OPL for original hardware. Step 2: Converting ISO to CHD