Your best bet is to convert them to either WAV or WMA.
I use a program called Click and Convert to do this:
http://www.iburn.net/wma-to-mp3.html
--
Wojo
--------------------
Wojo's Web:
http://www.remember-christopher.dostweb.com/Wojos_web/
"Girdlebug" <(E-Mail Removed)> wrote in message
news:2E76CDCB-B70E-42FE-8793-(E-Mail Removed)...
>I can not import Audio MPEG-4 format audio into the time line in movie
>maker.
> Can I convert these files into an other format and if so which one and
> how?
>
> Thank you!!!!