The battle between Blu-ray and HD DVD has caught the eye of the European Commission. While the group has not launched an official investigation, they are concerned that the exclusive deals struck by some Hollywood studios may be a sign of anticompetitive activity.
Hollywood's studios are racing to dig up files, emails and records of telephone conversations related to the competing Blu-ray and HD DVD formats after the European Commission sent out letters last month demanding evidence of their communications and agreements on the new generation of DVD formats.

The European Commission, the European Union's executive body, appears to be particularly interested in the activities of the Blu-ray group because of its dominance in Hollywood, according to people familiar with the situation. The commission is investigating whether improper tactics were used to suppress competition and persuade the studios to back their format.
According to the article, HD DVD supporters lobbied the European Commission, asking them to investigate relationship with Blu-ray and its supporters. If you'd like to read more, the entire article can be found here.