I found Pink Floyd On The Rock Trail DVD in Poundland today, I'm a huge Pink Floyd fan, so I had to buy it :)
"Fans of Pink Floyd are invited to revisit how the legendary psychedelic rock group came to be, with a look back at how four softspoken men combined to create some of the wildest sounds of the 1960s."
It cost just £1, not bad for a shrink wrapped DVD :)
