Canon Powershot 650 IS "shutter sound"

Does anyone know if it's possible to change the shutter shound on the Powershot 650IS to something better than whats on it now.

The menu gives you no options really to change it and i was wondering if there was some software i could download that will let me change it.

I can change my A630 theme using zoombrowser.

I pretty sure the 650 works the same way:
The camera must be connected to the computer to change the themes. Use the camera setting section to change themes.

We used to be able to store three themes on the camera, and switch anytime, but the newer cameras must be connected to zoombrowser to change themes.

I usually switch to a Christmas theme around this time.