MUMBAI: After achieving the top spot as the highest grossing film of all time, Avatar has achieved something new. The Blu-ray discs of the title sold 2.7 million units after just four days in stores in North America. 

Retail sales of the James Cameron blockbuster on Blu-ray and DVD have exceeded 6.7 million units since it launched last Thursday. The earlier record for Blu-ray sales was 2.5 million units.

The Avatar Blu-ray and DVD release features the film and corresponding menu, using the disc’s entire storage space to provide the highest quality picture and sound.