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.
Unlike newer consoles, PS2 emulation requires a BIOS dump from an actual console. AetherSX2 looks for these files in the bios folder:
Missing BIOS = No emulation. No patched version removes this requirement.
| File Extension | Full Name | Support Level | Notes |
|---|---|---|---|
| .iso | ISO 9660 Image | Full (Native) | The most common format. Ripped directly from PS2 discs. |
| .bin + .cue | Binary Disc Image | Full | Works if paired with a .cue sheet. Often used for multi-track games. |
| .img | Raw Disk Image | Full | Similar to .iso; less common. |
| .mdf / .mds | Media Descriptor File | Limited | Alcohol 120% format. Rename to .iso sometimes works. |
| .chd | Compressed Hunks of Data | Limited (Requires custom build) | Not supported in official v1.4. Needs patched version. | aethersx2 file types patched
This guide explains the common patched file types you may see when using modified/patched builds of the AetherSX2 PlayStation 2 emulator (e.g., to enable extra features, compatibility fixes, or plugin support), how to handle them, and how to apply or revert patches safely.
Some users apply patches directly to the .iso using tools like:
Why avoid?
If you must:
When someone says a “patched” file for AetherSX2, it usually refers to:
Patched emulator APK
Memory patches (pnach files)
You might see references to a "patched" file or folder. In the AetherSX2 community, this usually means one of three things: