[3] The BBC released a number of its programmes on UMD in the UK, including The Office, The Mighty Boosh, Doctor Who and Little Britain.

[clarification needed] UMD offers large capacity and the capability to store quality audio/video content; however, the format's proprietary nature, the lack of writers and accompanying blank media, made adoption difficult.

Poor sales of UMD movies early in the format's life caused major studios like Universal and Paramount to rescind their support.

[10][11] Retail support of the format experienced similar troubles, and in 2006, Wal-Mart began phasing out shelf space devoted to UMD movies.

In move similar to the PSP Go, Sony focused on digital downloads and opted for low-profile flash-based cartridges as the system's main media format.

This file can be loaded by a modified PSP through the Memory Stick, similar to titles that were distributed through the PlayStation Network.