I've got a pretty decent sized music library (about 19 GB) and I'm thinking about trying to get album art for it. The only problem is I'm worried about storage space, on my iPod not on my Mac. The thing is that I have a 3G 20 GB iPod (can't even display color, nevertheless album art), that is filled to the brim. If I add artwork, will those files transfer over to the iPod since they're somewhat embedded into the music files? or will they just stay on my computer?