Specifications

• ECMA-365: Data Interchange on 60 mm Read-Only ODC - Capacity: 1.8 GB (UMD™) (PDF)
• Dimensions: Approx. 65w x 64d x 4.2h mm (MiniDisc 68x72mm)
• Maximum capacity: 1.80 GB (dual layer), 900 MB (single-layer)
• Read speed: ?Mbits/sec (MiniDisc 1.4Mbits/sec, same as CD)
• Up to 150 minutes of video
• Laser wavelength: 660 nm (red laser)
• Encryption: AES 128-bit
• H.264/MPEG-4 AVC Main Profile Level3
• UMD resolution 720x480 NTSC
• PSP native resolution 480x272
• Up to 8 stereo audio tracks and 32 subtitles

Regions

DVD-style region coding has been applied to most UMD movies, although this restriction mechanism is not enabled for game releases.

• Region 0: (i.e., no region coding) Worldwide
• Region 1: North America
• Region 2: Europe, Japan, Middle East, Egypt, South Africa, Greenland
• Region 3: Taiwan, Korea, the Philippines, Indonesia, Hong Kong
• Region 4: Australia, New Zealand, Pacific Islands, South America
• Region 5: Russia, Eastern Europe, India, most of Africa, North Korea, Mongolia
• Region 6: China

In an effort to combat piracy and maintain exclusive control, the UMD format is proprietary and blank media or media writers are not available to the public. Individuals have found a way to hack the format, which caused the release of pirated ISO images of games in Asia.

"Sony", "PSP", the PSP logo, "MiniDisc", "UMD" and the UMD logo are trademarks or registered trademarks of Sony Computer Entertainment Inc.