PSP-3000 Internal Memory: None for Games

The PSP-3000 has zero user-accessible internal storage for games, saves, or media. The ~64 MB internal flash holds only the OS, settings, and browser cache.

You Need a Memory Stick PRO Duo

• Format: Memory Stick PRO Duo / PRO-HG Duo (Mark 2 certified for video).
• Capacity: 1 GB – 32 GB (via microSD → PRO Duo adapter). Official Sony max: 32 GB.
• Stores: Game saves, PSN downloads (games, DLC, themes), music, photos, video, homebrew, emulators.

Best Value Setup (2024)

1. Buy a SanDisk / Samsung / Kingston microSD (32 GB, A1/A2) ~$5-8.
2. Buy a CR-5400 / Photofast CR-5400 dual microSD → PRO Duo adapter ~$8-12 (supports 2x microSD = 64 GB, but PSP sees 32 GB max per slot).
3. Format on PSP: Settings → System Settings → Format Memory Stick.

Avoid counterfeit "128 GB PRO Duo" cards on eBay—they're hacked firmware reporting false capacity. Data will corrupt.