I WEB and Audio

[piddlepants]

I have a problem which I need help with.

I work on a MAC and have just designed a site using iweb.
The problem I ma having is adding audio. Although I have added the
audio it seems to always change the MP3 into a MOV file. OK for Mac
users but the audio does not play on a PC.

How can I stop this from happening? I have tried to drop the Mp3 into the
published folder but it does not work.

Hope someone can help.

Thanks!