Final Fantasy XII on PS3? Only via PS2 Classics (Digital)—But Play The Zodiac Age Instead

Final Fantasy XII (2006) is a PS2 game—it does not run natively on PS3.

How to Play on PS3

• PS2 Classics (PS Store): Purchase Final Fantasy XII: The Zodiac Age? No—that's PS4. The PS2 Classic on PS3 Store is the International Zodiac Job System version (Japan-only original, but English patched on Store). Includes license board overhaul, speed mode.
• Backward Compatibility: Only launch 60 GB / 20 GB PS3 (NA/JP) have hardware BC. Others: none.

Best Way Today

• PS4/PS5/PC/Switch/Xbox: Final Fantasy XII: The Zodiac Age (2017) – Remaster: 1080p/4K, 60 fps, rebalanced jobs, fast-forward, auto-save, trophies. Definitive version.
• PS3: Only via PS2 Classic download (if still purchasable in your region). Check Store.

Don't play the original PS2 version on PS3—get The Zodiac Age on modern hardware.