After patching, your file type support updates immediately. Place .chd files in the same folder as .iso files – they will appear in the game list.

The patching process turns a standard AetherSX2 APK into a NetherSX2 APK using a tool called an xdelta patch. Patches are distributed as .xdelta files, which contain only the differences between the original and patched file. You apply these patches using a tool like UniPatcher (on Android) or Delta Patcher (on PC).

: The preferred format for AetherSX2 due to its high compression ratio without losing data. Users often "patch" their library by converting ISOs to CHD to save storage space while maintaining performance.

Are you trying to apply a , a widescreen patch , or just compressing files to save space?

Beyond emulator patches, AetherSX2 supports game-specific patches through files. These are text-based files containing cheat codes and game modifications:

The .pnach (pronounced "pinach") format is a text-based cheat and widescreen modification file inherited from the desktop emulator PCSX2. These files dynamically inject code into the game engine at runtime to force modern features.

: Using specialized software (e.g., Vandal's Widescreen Tool ) to modify the game's executable (ELF) inside the ISO.

After installing the emulator, you'll need your game files. AetherSX2 supports several disc image formats:

Run a batch script or command prompt with the following command: chdman createcd -i game.iso -o game.chd