Alright, I have already moved all of my iTunes music from my Mac Mini's internal hard drive to an external hard drive to save space (shown on left). My question is, what else should I be moving and/or copying to the external hard drive other than the main "iTunes Music" folder. In other words, should I also be copying the iTunes Library LIB file, the iTunes music library.xml, artwork, iTunes library genius.itb (shown on right) or do I just leave those on the Mac Mini's hard drive? The only folder I copied over was the main folder with the MP3 files in it. Pretty n00b question, but whatever. Thanks.