Britain's largest Amazon distribution centre prepares for Black Friday - in a depot the size of 17 football pitches with four miles of conveyor belts.<br />The site in Dunfermline in Scotland opened in 2011 and stretches over 1.5 million square feet.<br />More than 1,000 seasonal workers will join the existing 1,200 staff to deal with orders over the Black Friday sale and Christmas shopping season.<br />The Amazon fulfilment centre is called EDI4 internally – named after Edinburgh International Airport.