If you wish to play your iTunes music that you purchased from the iTunes Store on another device like a BlackBerry, you will likely have to remove the DRM protection from the file. You can do this for 30 cents per song. Finding the place to do this took me a while, so I thought I’d share it.
1. Go into the iTunes store.
2. In the area marked Quick Links, click the Upgrade to iTunes Plus link.
3. You will provided with a list of songs you can upgrade to DRM free for 30 cents.

