Why the transferred songs are categorized in release year "Unknown" group?
Article ID:350648(modified 06 Feb 2012)
Applicable Models
NWZ-A844, NWZ-A845, NWZ-A846, NWZ-A864, NWZ-A865, NWZ-A866, NWZ-B172F, NWZ-B173F, NWZ-E353, NWZ-E354, NWZ-E355, NWZ-E363, NWZ-E443, NWZ-E443K, NWZ-E444, NWZ-E444K, NWZ-E445, NWZ-E453, NWZ-E454, NWZ-E455, NWZ-S544, NWZ-S545, NWZ-S744, NWZ-S745, NWZ-S754, NWZ-S755, NWZ-S764, NWZ-S765
