MP3's all the way - I have a good ear for music and have played many instruments over the years, but I am definitely not the one in a thousand that can tell the difference between a good quality 192kbps MP3 and something higher quality or not compressed (but then again, I am getting old and can't hear as much range as when I was 20!

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2008 335i Vert Montego/Saddle/Grey Poplar
2014 X3 35i Space Grey/Chestnut/Fineline Wave