PS1 Memory Card on PS2: Compatibility Guide & Solutions

No. PS1 memory cards do not work in PS2 memory card slots.

Why

• Physical: PS1 card is thinner, different keying; won’t insert fully.
• Electrical: Different pinout, voltage, protocol.
• File System: PS1 uses proprietary block format; PS2 uses MagicGate + different block structure.

Correct Solution

• Buy a PS2 Memory Card (8 MB, 16 MB, 32 MB, 64 MB third‑party).
• PS2 cards store both PS1 and PS2 saves automatically (creates separate partitions).
• PS1 games played on PS2 (backward compat) save directly to the PS2 card.

Transferring PS1 Saves to a PS2 Card

1. Insert PS1 card in PS1 → save game.
2. Insert PS2 card in PS2 → start PS1 game → game prompts to format/create PS1 partition on PS2 card → save there.
3. No direct card‑to‑card copy on PS2; use a PS1 console or PS3 with Memory Card Adaptor (CECHZM1) + USB stick.

Note: PS2 slim (70000+) requires an external memory‑card slot (USB) for PS1 game saves if the internal slot fails.