I recently purchased a Motorola Droid X2 and am trying to use my own mp3 ringtones instead of the annoying ones preinstalled. I've been able to send them to the music folder via my PC but they don't show up in the ringtone folder. Trying to google it someone said to go to the music folder, hold the song you want to use and click to use as ringtone, however, that option doesn't appear. Another said you have to have an SD card. I was hoping someone could tell me if I can use my own MP3 ringtones without having to purchase an SD card. Thanks in advance.