Before you close this article, perform these three actions:

Want to give yourself 99,999 Red Orbs without losing the authentic feel?

Before you start dragging files around, you need to understand how AetherSX2 handles saves. Unlike PC emulators that often use raw .ps2 files, AetherSX2 uses a virtual Mcd001.ps2 file. This is a digital replica of a physical PS2 memory card (8MB or 64MB).

Crucial Note: As of Android 11 and later, Google has restricted direct access to the Android/data folder for most file managers. You cannot see this folder with a standard file explorer anymore. You will need a workaround (more on that later).

Nothing is worse than being 12 hours into a Titan difficulty run and losing everything. Here is the safest backup method:

Step 1: Open your file manager (e.g., Solid Explorer, CX File Explorer, or Google Files). Step 2: Navigate to AetherSX2 > memcards. Step 3: Copy the file Mcd001.ps2 to a cloud drive (Google Drive, Dropbox) or your PC.

Pro Tip: AetherSX2 cannot read compressed files. Do not rename the extension. Simply copy the .ps2 file.

You will likely download a file that is either a .PS2 file or a .cbs/.max/.psu file (Action Replay Max or Code Breaker formats).

Searching for this specific string indicates you are likely facing one of three problems:

This is the most reliable method. Aether SX2 emulates a real PS2 memory card perfectly.

Where are these files located?

God of War 2 is notorious for throwing a "Memory Card (8MB) is corrupted" error specifically on AetherSX2. This is usually due to a threading bug in the emulator's I/O handling.