Final Cut Pro Audio Problem

i am making a video in FCP and the audio is being weird, and it is not the first time. it is hard to explain it kinda skips, there is a link at the bottom of an example if you listen close you can tell that it is doind something weird,

thanks

(it is angelfire so you are gunna have to copy paste it sorry)
http://www.angelfire.com/alt/fatmog/Sequence_1_1-2.mp3

so the audio is in mp3 format while you're working on it in final cut pro? because if so, you'll probably have to convert it to aiff. final cut pro doesn't play well with mp3 because it's a compressed audio file. your computer's processor is therefore working at decoding the mp3 as it plays, which is harder on the processor than playing an aiff audio file. with such a processor-hungry app, it needs all it can get, so it skimps on the processing power given to decoding the mp3. just use an aiff file, and it'll work fine.

cool man thanks