Mobile phones in use today would still go for the lively tunes in the WAV format. But this would largely depend on the phone capabilities, on whether it can support the said format or not. Most phones, especially the first ones introduced in the market but are yet being used today cannot support such advanced forms of ring tones, thus the need to resort to the reliable polyphonic tones which they were originally designed to support.
There are a lot of sites that cater towards properly downloading polyphonic tones. These are usually found side by side with that of the highly demanded WAV or AMR tone formats today. The safest way to download them would be through WAP sites affiliated with mobile network subscribers. But over the web, unless otherwise distributed in another manner such as file transfer or peer to peer transfers, downloading them from sites which store them would really be hard to find.
[tags]polyphonic, wav, amr, ringtone, mobile phones[/tags]