The default music player on the Photon lets you set any music file as a ringtone. Some third-party music players do as well. Great. I did this for a couple files, and it works fine. At first, I assumed that the music player was copying the files to a separate location reserved for ringtones, and that I could simply find and delete those files to remove the ringtones from the list of available ringtones. But no. As it turns out, the files remain in their original locations, and what must be happening under the hood is that some type of internal pointer (i.e. a list of ringtones) is set to point to the files that had been set as ringtones by the music player. The problem is, I don't want those music files showing in the list of available ringtones anymore. (Menu > Settings > Sound > Phone ringtone.) The music player seems to offer no way to "UNset as ringtone". I found that if I renamed the files, then went into the ringtone setting and selected a different ringtone, the files would disappear from the list. But once I renamed them back, they reappeared in the list. And I don't want to have to change the names of my files. Does anyone know how to remove them from the list of available ringtones?