Long-serving defender Carragher popped out to buy the video so that 40 players could admire caretaker manager Dalglish's Anfield career.
"A lot of the young academy players and even some of the first team are so young they had never seen him play," said Carragher.
"Everyone sat fascinated while the DVD was being screened, even if we did have a bit of a laugh about it coming from a bargain bin.
"When Kenny walked in, everyone was cheering. It was a great moment."