Universal Media Disc

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UMD logo

The Universal Media Disc (UMD) is an optical disc medium developed by Sony for use on the PlayStation Portable. It can hold up to 1.8 gigabytes of data. It is considered the first optical disc format to be used for a handheld video game system.

ECMA[edit | edit source]

This Ecma Standard specifies the mechanical, physical and optical characteristics of a 60 mm, read-only ODC having a maximum capacity of 1,8 Gbytes. It specifies the physical format, the quality of the recorded signals, the format of the data and its modulation method, thereby allowing for information interchange by means of such ODCs.

This Ecma standard specifies two types of ODCs, Type A and Type B.

  • Type A: Single layer disk with maximum recorded capacity of 0,9 G-bytes
  • Type B: Dual layer disk with maximum recorded capacity of 1,8 G-bytes

Information interchange between systems also requires, at a minimum, agreement between the interchange parties upon the interchange code(s) and the specifications of the structure and labeling of the information on the interchanged ODCs.

Specification[edit | edit source]

  • 60mm
  • Laser Diode:660nm
  • Dual Layer :1.8GB
  • Transfer Rate:11Mbps
  • Shock Proof
  • Secure ROM by AES
  • Unique Disc ID

Images[edit | edit source]

Game UMD

Game UMD.jpg

Movie UMD

Movie UMD.jpg

Music UMD

Music UMD.jpg

UMD Inside PSP

UMD Inside PSP.jpg

Network Utility Disc UMD

Network Utility Disc UMD .jpg

Other[edit | edit source]

UMD Video: A history of film on the PlayStation Portable