The Universal Media Disc (UMD) is an optical disc medium developed by Sony for use on the PlayStation Portable.
Christopher Eccleston's Doctor is wise and funny, cheeky and brave. An alien and a loner (it's difficult keeping up with friends when your day job involves flitting through time and space), his detached logic gives him a vital edge when the world's in danger. But when it comes to human relationships, he can be found wanting. That's why he needs new assistant Rose. Rose is a shop-girl from the present day. From the moment they meet, the Doctor and Rose are soulmates. They understand and complement each other. As they travel together through time, encountering new adversaries, the Doctor shows her things beyond imagination. She starts out as an innocent, unfettered by worldly concerns. But she ends up an adventurer who, by the end of the series, can never go home again...