I am thinking of upgrading my ICE system soon, currently got the standard system in but I have been thinking of a Sony MD and MP3 CD Autochanger for under the seat.... which leads me onto my question, what is the quality of the MP3s like in their original format ? Is it CD quality ? It obviously depends on the quality of the MP3 that you download but if they are CD quality MP3s then is the playback the same ?