The first impression iTunes gives is that of a very simple and easy to use software to buy music online. It also servers as a library with a huge amount of music data as well as the primary application through which you manage you iPod. Before that slick interface, however, lies cutting-edge encryption, authentication and digital rights management technology (DRM) that tries to make sure that what you download and play on your iPod is actually paid for!

Apart from Apple's own DRM restrictions, iTunes seems to do everything in it's power to make sure you loose your music collection. Here is a list of dangerous iTunes behaviors and settings.

Automation

Even if you are a complete beginner using PCs or an iPod, you should never, ever allow for automatic synchronization between your iTunes' music library and the library stored on your iPod. You see, an iPod can only be tied to a single iTunes library, at least in terms of synchronization. Hence, if you connect your iPod to a friend's computer (or vice versa) and iTunes starts synchronizing the two libraries, all content on the iPod will be lost! To avoid that, go to Edit - Preferences - iPod and select Manual Synchronization.

iPod is not a Backup

Many people think that their iPod also acts as a back-up of their music collection. Guess again. Data transfer always happens from your computer to your iPod and not the other way around. So, in the unfortunate event that you computer's hard disk fails and you loose your iTunes library, you can't restore your tracks from an iPod.