The Endless River is based on material recorded in 1993 and 1994 during the Division Bell sessions at Britannia Row Studios and aboard the Astoria, where Pink Floyd's A Momentary Lapse of Reason (1987) and David Gilmour's On an Island (2006) were also partly recorded. In 1994, Wright said the band had recorded "four 90-minute DATs of five or six hours of music. The hardest thing was to throw things out and decide what we're gonna work on ... but they are not lost. They are in my head, they are in Dave's head.
