Extracting Audio from Video With QuickTime Pro?

I read on another discussion board that QuickTime Pro could record/extract audio only from a video file. So I purchased the QuickTime Pro upgrade today (for Windows XP) but can't seem to find out how to do it, assumimg that post was correct and it can be done at all.
The Nero video editing software I use can get the video file in MPEG-2, MPEG-1, AVI and other formats. I tried MPEG-1, but even the conversion to QuickTime's .mov format came up with no audio at all. I noticed a post here saying that was a limitation of the software. I could purchase the QuickTime MPEG-2 add-on but that seems to only allow playback and doesn't look like it will help any.
Another post on the other discussion board said that virtualdub.org has a software program that could do this extraction, but silly me I went with Apple and was delighted to read about the no refund policy just now. :-/
I'm guessing another possible approach is some kind of hardware solution -- a recording device of some sort?

In order to extract a track (video or audio) the file first must have those as independent tracks.
MPEG 1 and 2 are "muxed" (video and audio in the same track) so QuickTime Pro has nothing to extract.
MPEG Streamclip (free) can convert .mpg and .mpeg files to QuickTime formats.
If you export from Nero as .avi you can also use QuickTime Pro to extract tracks as it will have at least two.
MPEG 1 and 2 are playback formats and are not intended to be edited.

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Hi there,
I have a video clip in which I want to take the audio of actor speaking and put it onto another video.
I.e. he is speaking about walking in the park. I want to take him speaking about walking in the park and put it onto the clip where he is actually walking in the park.
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Hi Bill,
Thanks for the quick response. I guess my question now is how would I do those two things?
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Date: Fri, 13 Jan 2012 19:01:51 -0700
From: [email protected]
To: [email protected]
Subject: Extracting audio from video clip to use as narration?
    Re: Extracting audio from video clip to use as narration?
    created by Bill Hunt in Premiere Elements - View the full discussion
Welcome to the forum. There are several ways to accomplish this, and your choice might well rest on how you like to work, and what you are doing, such as Deleteing Video. First, you could Export/Share just the Audio as a PCM/WAV @ 48KHz 16-bit, from your Timeline, and Import that into a New Project, where the Audio WAV file would be used. OTOH, you could Atl-click on the Video portion of the muxed file, and Delete the Video, leaving only the Audio portion. Good luck, Hunt
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