This video demonstrates how to turn your favorite songs into ringtones for your Blackberry Curve. You will need a USB cable to connect your Blackberry to your computer. After connecting your Blackberry, a message will ask you if you would like to turn on "Mass Storage Mode". Select yes. On your computer, open the Blackberry in a window, and then open "music". Then click-and-drag songs from your computer onto your Blackberry. You can transfer files to either music or ringtones (as long as its mp3 format). You can also use the same process to transfer, pictures, movies, and documents from your computer to your Blackberry.