Teenagers and students have an average of more than 800 illegally copied songs each on their digital music players, the largest academic survey of young people's music ownership has found.
The research also showed that half of 14 to 24-year-olds were happy to share all the music on their hard drive, enabling others to copy hundreds, or thousands, of songs at any one time.
Although illegal copying has become widespread, the scale of the problem uncovered by the University of Hertfordshire left the music industry surprised. On average every iPod or digital music player contained 842 illegally copied songs.
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