Wav2Tones is a utility for converting uncompressed and some compressed wave files to MIDI ringtones for the Treo 650 and use the new wav ringtone with the phone application.
When the wav file is converted you can use it as normal MIDI tone. You can use it as your favorite ringtone and alarm sound.
The converted wav file will sound just like the original wav file without and modifications to the original.
External card such as SD/MMC