Hi! I have a big lossless iTunes library at about 2.5tb, and I've downloaded and embedded manually all the album art myself (not via iTunes). Recently I got an iMac (late 2012), and I see that the size of the iTunes/Album Artwork/Cache folder has gone up from 2.59gb in Snow Leopard to 5.84gb in Mountain Lion. What's going on here? I just inserted the same library into iTunes on my iMac that I also use with my MacBookAir and MacBookPro. Why does Mountain Lion needs 2.3x more cache size compared to Snow Leopard? Just curious... Thanks!