Don't think there is a way to do it directly (at least not yet) but you can put them on your phone indirectly. I now have about a dozen custom ringtones on my phone using this method: http://forums.wirelessadvisor.com/samsung/13878-want-put-mp3-ringtones-onto-your.html One thing though: you might want to increase the volume of the file before you upload to your phone, most of my files (Ripped directly from a CD) played rather quiet when used as a ringer. I used Cool Edit Pro to amplify the waveform about 6dB before I uploaded. Hope this helps... Wayz.