Playback after importing (audio) is choppy/distorted

I have imported video from a Samsung camcorder and the video appears ok but the audio is distorted. Any ideas?

What version of iMovie are you running?
What is the Make / Model of your camcorder?
Is your camcorder listed in the _Camcorder Support_ page? http://support.apple.com/kb/HT3290#2

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