I've got 2 PCs, a laptop and a desktop. All of my music that I've ripped into iTunes on the desktop is of course the music I have on my iPhone. My laptop has absolutely no music in iTunes and I was wondering........if I rip a CD into iTunes on my laptop and try to sync that CD onto my iPhone, will it delete all the other music on my iPhone because it's not found in the iTunes library on the laptop ? Thanks in advance. Cheers !