UMD可以表示:

  • 通用媒体光碟 (Universal Media Disc):索尼电脑娱乐的掌上型游戏机PlayStation Portable(PSP)上应用的光盘规格。
  • UMD格式Universal Mobile Document):手机电子书格式
  • 马里兰大学University of Maryland):马里兰州的一所大学

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