So I just got a new 512 iPod shuffle for my birthday and I put a lot of music on it at home, and I came to work and plugged it into another mac thinking that I could play the songs on my shuffle via iTunes on the computer at work. However, it went through this iPod software update and then gave me the choice of either of erasing everything on the shuffle or not mounting at all. Like a dumba--, I clicked erase thinking "Hey it won't really erase everything..." What am I doing wrong? PS: Losing the songs isn't a big deal. I have the original playlist at home, but I'd like to figure out what's wrong so I can do this later.