Test ministeriali 2012-2013 in lingua inglese per l’accesso alla facoltà di Medicina e Chirurgia 2012-2013
Rating figures for music are now much more difficult to calculate compared to a decade ago. The introduction of new formats for selling music means that figures have to be calculated based on more methods such as downloads, in addition to the sales of CDs in shops. Additionally, the availability of more formats means that there is more potential for copies of works to be shared with other fans, who do not pay for them. These fans do not show up in the ratings, so the official ratings do not reflect the relative popularity of a work. Which one of the following, if true, would most strengthen the above argument?