yeah we flew in Ocotober on the way to Auckland through Taipei and we had the usually business ear phones on the upper deck. The first time in late December i though was just bad luck but 6 days later the same thing on an A330. It is possible they are in short supply and hence reserving it for longer routes.
Pretty horrible music this month where all the old songs and pop songs were bundled so couldnt select indivdual songs.