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Friday, June 1, 2018

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The Universal Media Disc (UMD) is a discontinued optical disc medium developed by Sony for use on their PlayStation Portable handheld gaming and multimedia platform. It can hold up to 1.8 gigabytes of data and is capable of housing video games, feature-length films, and music. UMD was the trademark of Sony Computer Entertainment for their optical disk cartridge (ODC).


Video Universal Media Disc



Video storage format

While the primary application for UMD discs is as a storage medium for PSP games, the format is also used for the storage of motion pictures and, to a lesser degree, television shows for playback on the PSP. The video is encoded in the H.264/MPEG-4 AVC format, with the audio in ATRAC3plus. Video stored on UMD is typically encoded in 720×480 resolution, but is scaled down when displayed on the PSP.

The American punk rock band The Offspring released their Complete Music Video Collection on the format. The BBC released a number of its programmes on UMD in the UK, including The Office, The Mighty Boosh, Doctor Who and Little Britain.

Some adult films have been released on UMD in Japan.

UMD VIDEO Case dimensions: H×W×D = 177×104×14mm


Maps Universal Media Disc



Specifications

ECMA-365: Data Interchange on 60 mm Read-Only ODC - Capacity: 1.8 GB (UMD)

  • Dimensions: approx. 64 mm (diameter) × 4.2 mm (thickness)
  • Maximum capacity: 1.80 GB (dual layer), 900 MB (single-layer)
  • Laser wavelength: 660 nm (red laser)
  • Encryption: AES 128-bit

Provisions

According to the official ECMA specification Sony designed the UMD to support two possible future enhancements and products.

  1. Protective Shutter: Similar to the MiniDisc and 3½-inch floppy disk, this protective shutter will shield the inner disc from accidental contact.
  2. Auto-Loading: UMDs were designed for possible future slot loading devices with Auto-Loading mechanisms. These would be very similar to the auto-loading mechanism used in slot loading MiniDisc home and car decks. It would also be similar to the Sony U-Matic auto-loading mechanism. Unlike the current clamshell loading design the PSP uses, a slot loading device using an Auto-Loading mechanism would be motorized and completely automatic. The user would insert the disc into the device slot, the motorized mechanism would then take over and draw the disc inside the drive completing the loading process. The disc would also be ejected fully automatically by the motorized mechanism, like a VCR. This would also mean that power would be required in order to insert or eject a disc.

In comparison to Sony's MiniDisc format the sliding shield which prevents direct disc contact on MiniDiscs is absent from all UMDs released, though it is an option according to the ECMA specification.

Region coding

DVD region coding has been applied to most UMD movies and music. However regional lockout is not applied to games, making them region-free.

  • Region 0: Worldwide
  • Region 1: United States, Canada, U.S. territories, Latin America
  • Region 2: European Union, Japan, Middle East, Egypt, South Africa, Greenland, French territories, British territories.
  • Region 3: Thailand, Singapore, Malaysia, Taiwan, South Korea, Philippines, Indonesia, Hong Kong
  • Region 4: Australia, New Zealand, Pacific Islands, Latin America
  • Region 5: Russia, Eastern Europe, India, Pakistan, the majority of Africa, North Korea, Mongolia
  • Region 6: Mainland China

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Availability and support

UMDs offer large capacity and the capability to store quality audio/video content; however, the format's proprietary nature and the lack of writers and blank media made adoption difficult. The UMD format never saw implementation on any device other than the PlayStation Portable, and as a result the market was very limited compared to those for other optical media formats. Buyers were generally put off by the high price of UMD releases, which often retailed at comparable prices to but lacked the extra content found on DVDs. Poor sales of UMD movies early in the format's life had caused major studios Universal and Paramount to rescind their support. Retail support of the format experienced similar troubles, and in 2006 Wal-Mart began phasing out shelf space devoted to UMD movies, with other chains soon following suit. By 2006 most non-specialty retail stores had stopped bringing in new UMD movies and no longer had a separate section devoted to them, with a few stray unsold titles mixed in amongst the regular PSP games.

Since 2011, there have been no more movies released on UMD..

In August 2007, Multimedia Recovery brought to the market their UMD Replacement Case after many complaints from PlayStation Portable owners that the outer casing of the UMD disc was cracking or pulling apart due to the poor design, which causes the UMD to become unreadable in the PlayStation Portable.

In late 2009, Sony began pushing developers away from the UMD format and towards digital distribution on the PlayStation Network in preparation for the launch of the digital-download-only PSP Go, which was the first (and only) PSP model to not include a UMD drive. However the system experienced lackluster sales compared to previous models, with most consumers still choosing the UMD-compatible PSP-3000 model, which continued to be sold alongside the PSP Go. Despite the earlier push for PlayStation Network releases around the PSP Go's launch, over half of the PSP's library is still only available in UMD format including Crisis Core: Final Fantasy VII and Kingdom Hearts Birth by Sleep, though there have been a few PlayStation Network-only releases since the PSP Go's launch, such as LocoRoco Midnight Carnival. Still, most new games continue to be distributed via UMD, and, aside from those published by SCE, not all have been released on PlayStation Network. In 2011, the PSP-E1000, a budget PSP model with a UMD slot but without Wi-Fi (and thus no internet connectivity), was released, and is the final revision of the PlayStation Portable.

The successor of the PlayStation Portable, the PlayStation Vita, dropped UMD support entirely in a move similar to the PSP Go, focusing instead on digital downloads and opting for low-profile flash-based media for its retail software. 2014 marked the discontinuation of the PlayStation Portable, which makes the UMDs no longer rendered available or useful.


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See also

  • MiniDisc - a similar Sony format

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References


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External links

  • Sony PSP Movie Sales Strong Article on the early success of movie sales on UMD from MP3 Newswire
  • Breaking news: Sony's UMDs aren't selling well News story about the disappointing UMD sales.
  • UMD Movie Database

Source of article : Wikipedia