They also blame Apple iTunes which lets you buy only the songs you like. Theoretically the same number of people are still buying the same music, only now they can choose the songs they want they only buy half the album for half the price.
This year might simply have had 40% less music worth buying.
Walked into JB HiFi the other day and noticed that CDs were shoved far into the corner, behind a similar amount of shelf space for DVDs, and with much less shelf space than all the zapping/flashing gadgets.