UMD — or Universal Media Disc — is an optical disc format that can be used only on Sony's Playstation Portable. Since Doctor Who's return in 2005, the BBC has released several stories from the series in this format, in both Regions 1 and 2.
|Series||Stories included||R1 release||R2 release|
|1||Rose, The End of the World, The Unquiet Dead||12 December 2005||4 July 2006|
|Aliens of London, World War Three, Dalek||17 October 2005||4 July 2006|
|The Long Game, Father's Day, The Empty Child/The Doctor Dances||26 December 2005||4 July 2006|
|Boom Town, Bad Wolf, The Parting of the Ways||26 December 2005||4 July 2006|
|2||The Christmas Invasion, New Earth||27 August 2007|
|4||Partners in Crime, The Fires of Pompeii, Planet of the Ood||13 April 2009|