UMD

(Universal Media Disc) The optical disc used in Sony's PlayStation Portable (PSP). Officially the ECMA-365 standard, a UMD is a read-only medium for games and movies. Video is encoded in H.264, and audio is encoded in ATRAC3plus. See PlayStation.

A UMD Cartridge

Single-layer UMDs have a capacity of 900MB, and dual-layer cartridges hold 1.8GB. The DVD regional coding is used for UMD movies, but not for games. (Image courtesy of Sony Computer Entertainment.)

UMD

Acronym	Definition
UMD➣University of Maryland
UMD➣University of Minnesota - Duluth
UMD➣University of Massachusetts Dartmouth (North Dartmouth, Massachusetts)
UMD➣The University of Michigan - Dearborn
UMD➣Universal Media Disk
UMD➣Universal Media Disc (Sony Playstation Portable)
UMD➣User Model Database
UMD➣Universal Media Disc
UMD➣Ultra Mobile Device
UMD➣Ultra Micro Dot
UMD➣Ultra Mini Diode
UMD➣Unit Manning Document
UMD➣Ultra Mobile Device (various organizations)
UMD➣Unit Management Division
UMD➣Unmatched Disbursements
UMD➣Unit Movement Data
UMD➣Under Monitor Display
UMD➣User Manager for Domains
UMD➣Unit Manpower Document
UMD➣Union des Mouvements pour la Démocratie (French: Movement for Democracy Union; political party; France)
UMD➣Use Magical Device (gaming, Dungeons and Dragons)
UMD➣Universal Media Drive
UMD➣Unified Model of Dependability
UMD➣Upper Main Display