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UMD the Universal Media Disc is an optical disc medium developed by Sony for use on the PSP (PlayStation Portable). It can hold up to 1.8 gigabytes of data and it is the first optical disc format to be used for a handheld video game system. The format, 60mm wide and 4 mm high, is designed to store games, videos (movies) and music for playback on the PlayStation Portable (PSP) device.
Not only offering storage for official PSP games, UMD offers another format with which to distribute movies. Movies on this format can benefit from the PSP's 480x272 pixel resolution at a 16:9 ratio.
Specifications
- Dimensions: 65mm (w) x 64mm (d) x 4.2mm (h)
- Weight: 10g
- Disc Diameter: 60mm
- Maximum Capacity: 1.8GB (single-sided, dual-layer)
- Laser wavelength: 660nm (Red laser)
- Encryption: AES 128bit
- UMD Audio - codec ATRAC3plus, PCM, MPEG4 AVC
- UMD Video - codec MPEG4 AVC, ATRAC3plus, Caption PNG
- Sony UMD media is replicated in the United States, Europe and Japan
For more information on the UMD format, please visit Wikipedia: http://en.wikipedia.org/wiki/Universal_Media_Disc This Link Will Open A New Window
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