The Open University has announced that it has become the first entity to reach 20 million downloads on Apple's online store, iTunes.
The free educational tracks were available on the iTunes U section which brings together free audio and video resources from educational organisations worldwide.
Martin Bean, Vice-Chancellor of The Open University said in a statement that the success of the Open University (or OU) lies in providing original, custom-built content for iTunes U, linked to current and popular OU courses.
He added that "Students are able to incorporate tracks into their studies, while informal learners anywhere in the world can tap into these excellent materials for free."
iTunes U has recorded more than 250 million downloads since it was launched and Open U has logged around 35,000 downloads every day on average since it started tracking downloads two years ago. Already, there have been more than 4.5 million downloads since the beginning of the year.
The university, which claims to have more than 162,000 students for its online course, also revealed that usage of mobile phones as study tools has increased significantly. More than 11,000 unique visitors accessed the university' website in May 2010.