I'm not sure what the advantage of CAS is over WAV other than smaller size, but ~60kB for a WAV isn't much nowadays. Isn't the WAV more likely to work, and it means you can just play it straight back to a real Dragon from a PC, without having to convert back from a CAS to a WAV.
(Also, uploading a WAV saves the hassle of converting to a CAS
![Wink ;-)](./images/smilies/icon_e_wink.gif)