"Over the period 1999 to 2003, DVD prices fell by 25% and the price of players fell in the US from over $1,000 to almost nothing," says Strumpf. "At the same time, CD prices went up by 10%. Combined DVD and VHS tape sales went up by 500m, while CD sales fell by 200m, so a possible explanation is that people were spending on DVDs instead of CDs."

Listen to the flip side - Artikel im Guardian [via Netaudio Mailingliste]