It has been compiling the official DVD and Blu-ray sales for Germany and many other countries for the past 15 years and this deal with The Digital Entertainment Group expands its market coverage.

Tanja Eisen, GfK Entertainment’s global director sales & marketing, said: "Video on demand platforms are reaching an increasingly wider audience. Our service will provide valuable insights into this flourishing market segment in the future, and we wish to thank the DEG membership for the confidence it has placed in us."

Under the co-operation agreement, GfK Entertainment will produce separate country analyses for the internet video on demand and electronic sell-through distribution channels.

The following countries will be covered: Germany, Belgium, Denmark, Finland, France, the UK, Ireland, Iceland, Italy, Luxembourg, the Netherlands, Norway, Sweden, Spain, Australia, New Zealand and Japan.