I have two computers and I have itunes on each computer. However, only one computer is connected to the internet (via high speed cable). My wife and I both have iPods so, we both wanted to have separate iTunes on separate computers so that I don't mess up her iTunes. I plug my iPod into the PC in the basement and she plugs hers into the iMac upstairs. Last night I purchased a song from iTunes store and downloaded it. So the song was downloaded to my wife's itunes. I copied the file onto my portable hard drive and transferred it to my itunes in the basement so I could put it on my ipod. To my chagrin, this plan failed because I could not "register" the song on my computer in the basement (it is not connected to the internet). So, is there anyway I can get around this? Apparently Apple only lets you play a purchased iTune file on one computer and one iPod, unless you register the song on the other computer. What a hassel!! What a rip-off.