I have been deluged by e-mail about disappearing iPods. Here’s what happens in general: Your iPod starts reporting disc (although I’d imagine that “disk” is more correct) errors in iTunes when you try to sync. “The iPod cannot be updated. The required disc cannot be found.” So you reformat your iPod and reload the new firmware. Then your iPod stops appearing in iTunes. It mounts onto the desktop as a disk rather than with an iPod icon. Unfortunately, this isn’t just happening to you. It’s mostly shuffles, but also happened to nanos and 5G video iPods. Anyway, the cure for now seems to be quitting out of and re-launching iTunes and hoping. And occasionally rebooting your computer. Some people have found that it helps to keep their computer from sleeping and enabling disk usage for the iPod. In any case, it’s not just you and it seem to happen to iPods using the latest firmware updates. If you know anything more about this behavior or have any insights, drop me an e-mail or add to the comments. Thanks.