The attachment contains a couple of samples that seem to have very noticable artifacts on Nero AAC at q 0.50, while sounds fine on iTunes at 160 VBR and LAME V2.
My ABX logs can be found here (http://www.hydrogenaudio.org/forums/index.php?s=&showtopic=66050&view=findpost&p=594823)
Another sample for http://www.hydrogenaudio.org/forums/index....mp;#entry632431 (http://www.hydrogenaudio.org/forums/index.php?showtopic=66050&st=75&p=632431&#entry632431)