The number of Blu-ray discs sold in December 2008 was nearly 400 percent up on those sold in the same period in 2007, says the British Video Association.

The Association also revealed that 3.7 million Blu-ray discs were sold during 2008.

"This shows the home entertainment market is alive and kicking, despite difficult trading conditions across the entire retail sector," said the BVA.

The Dark Knight was the most popular Blu-ray disc, selling 218,000 copies, even though it was only available for the last three weeks of the year.

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"Released in early December, it became the best-selling Blu-ray title in history, selling more copies on Blu-ray in its first full week (178,000 copies including Batman Begins box-set) in the shops than any other movie ever released on the format."

"We expect the growth of Blu-ray to continue in 2009 on the back of strong releases such as Quantum of Solace, Tropic Thunder and The Duchess," added Lavinia Carey, Director General of the British Video Association.

According to Screen Digest, Blu-ray sales will rise to 17 million over 2009, making up seven percent of the whole DVD market.

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