Mamma Mia! is also the highest-grossing British film at the UK box office
Musical film Mamma Mia! has become the UK's biggest-selling DVD of all time, according to official figures.
It is the first disc to sell more than five million copies - placing it in one in four UK households.
The Abba-themed movie was the number one DVD of 2008, with its closest rival The Dark Knight making 1.5m sales.
The Official Charts Company's (OCC) all-time DVD list of the last decade sees Mamma Mia! surge ahead of previous top seller Pirates of the Caribbean.
The Curse of The Black Pearl has sold 4.7 million copies, followed in the third and fourth place by Lord of The Rings: Fellowship of The Ring and The Two Towers.
Other top 10 DVD releases of the last 10 years include Bond adventure Casino Royale, The Shawshank Redemption and Gladiator.
UK TOP-SELLING DVDs OF ALL TIME
1 Mamma Mia!
2 Pirates of The Caribbean: The Curse of The Black Pearl (pictured)
3 Lord of The Rings: Fellowship of The Ring
4 Lord of The Rings: The Two Towers
5 Casino Royale
Source: Official Charts Company
Shrek 2 comes in at number 10 and is the best-selling animation DVD during the last decade.
Some 12 titles have each sold in excess of three million copies since 1998, when the DVD format was launched in the UK.
Mamma Mia! became the fastest-selling DVD when it was released in mid-November, and has continued to sell over the festive period.
Martin Talbot, managing director of the OCC, said: "Right from its release, Mamma Mia! has been a record breaker.
"This latest landmark further underlines the popularity of the movie, which is now officially the British public's favourite DVD of all time," he added.
Other releases linked to the film have proved successful, with its soundtrack becoming the biggest-selling compilation of 2008, shifting one million copies.