Something else to think about is a sony headunit that plays atrac3plus format. Then, you just need to find a copy of sonicstage and you can have about 460 songs on a cd. I haven't noticed a different in mp3 to atrac3plus sound quality either. If 460songs a cd doesn't do it for you, then you can always get a compatible multidisc changer and put it in the trunk. Crutchfield.com is where I got mine, couldn't be happier with it.