The country's largest ISP introduced the graduated response system to combat illegal file-sharing as part of a legal settlement with EMI, Sony, Universal and Warner in Ireland.

The ISP started sending warning letters to suspected file-sharers with the threat of sanctions if the illegal activity continued.

Ireland's Data Protection Commissioner raised concerns over the procedure and ordered it be stopped altogether after evidence emerged that some warning letters had been sent to the wrong people.

But the major labels claimed ...