PSP Game Format: UMD (Universal Media Disc)

The PlayStation Portable (PSP) uses Universal Media Disc (UMD)—a proprietary, mini-DVD-like optical disc format housed in a protective cartridge.

UMD Key Facts

• Capacity: 900 MB (single layer) / 1.8 GB (dual layer).
• Primary Use: Almost all retail PSP games shipped on UMD.
• Secondary Use: UMD Video (movies, TV shows) and UMD Music discs existed but saw limited adoption.
• Later Models (PSP-2000/3000/Go): Added digital distribution via PlayStation Store (PSN), allowing direct downloads to Memory Stick PRO Duo / internal flash (PSP Go).

Current Status

• Obsolete: UMD production ceased years ago. PSP hardware discontinued (2014).
• Modern Play: Most enthusiasts use custom firmware (CFW) to run ISOs/CSOs from Memory Stick, or play via PPSSPP emulator on PC/Phone/Deck. PlayStation Vita / PSTV also supports digital PSP titles purchased on PSN.

If you have a physical UMD collection, handle discs carefully—the exposed read window scratches easily, and the plastic shell cracks under pressure.