How to Format a PSP Memory Stick (PRO Duo / M2)

Format directly on the PSP (safest) or via PC.

Method 1: On the PSP (Recommended)

1. Insert Memory Stick.
2. Settings → System Settings → Format Memory Stick.
3. Confirm. Creates correct FAT32 structure with PSP folder (GAME, SAVEDATA, MUSIC, VIDEO, PHOTO, THEME, COMMON).

Method 2: On Windows PC

1. Insert via card reader / USB adapter.
2. File Explorer → Right-click drive → Format.
3. File System: FAT32 (required).
4. Allocation Unit Size: Default (usually 32 KB for >32MB).
5. Volume Label: PSP (optional).
6. Quick Format: Checked.
7. Start → OK.
8. Crucial: Create folder PSP on root. Inside: GAME, SAVEDATA, MUSIC, VIDEO, PHOTO, THEME, COMMON.

Method 3: macOS / Linux

• macOS: Disk Utility → Erase → **MS-DOS (FAT32)** → Master Boot Record.
• Linux: sudo mkfs.vfat -F 32 -n PSP /dev/sdX.

Important

• Backup first! Formatting erases ALL data.
• Max supported: **32 GB** (FAT32 limit). 64 GB+ cards work if formatted FAT32 (use GUIFormat / Rufus on Windows).
• PSP Go uses **M2** (Memory Stick Micro) — same process.
• Fake/counterfeit cards (common on eBay) report false capacity → corrupt data. Buy SanDisk/Sony/Lexar from reputable sellers.