Why do .mpg videos convert to .m4v with no audio?

When I import a .mpg video into iTunes and then do the "Convert Selection for Ipod"....the resulting video .m4v comes with no audio!!!
What is the problem?
Thank you.

You have to separate out the audio and video tracks (referred to as "demuxing") of an MPEG-1 or MPEG-2 file before you import it into QuickTime. Try one of the following utilities:
http://www.squared5.com/
http://www.mpeg2works.2ya.com/
http://www.biermann.org/philipp/mpegcut/
http://sourceforge.net/projects/macbbdemux
http://diva.3ivx.com (may not extract the audio)
Hope this helps.

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When trying to convert quicktime mpg video files to m4v I am unable to open them or lose the audio completely. How can I fix this?

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-Grace

Hi Grace,
The free app MPEG Streamclip may be able to convert the file to a more suitable format. It can be downloaded from the developer's site here:
http://www.squared5.com/svideo/mpeg-streamclip-mac.html
Here's a User Tip by AppleMan1958 that provides some more information about MPEG Streamclip (it's about importing homemade DVDs, but similar principles apply):
https://discussions.apple.com/docs/DOC-3951
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I'm new to Adobe Premiere.
Problem #1: Whenever i import videos (the one i captured using windows movie maker), and i play it in the program view, the video is degraded. [I've set the program view to high].
Problem #2: The other videos I import is not in sync with its audio, the audio is super fast (sounded like chipmunks) but the video speed is normal.
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1. Don't capture with WMM or convert the captured files to DV AVI type2.
2. What codecs are used? AVI is not a codec, just a wrapper.
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I noticd the problem after I downloaded the new update to MacKeeper. I had no issues with the last version of MacKeeper. I don't know if that is the problem or something else.
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This is a new full HD camcorder and I have never used iMovie to import video. My other two camcorders (a flip and a little RCA) would import directly to the hard drive. The iMovie import is very jerky and about 5 seconds behind the audio. Any suggestions?

The solution that will ABSOLUTELY solve your problem is to run that AVI through MovieMaker. The file output from MovieMaker will be a DV-AVI and you won't have any delay problem.
Here's now to do it, from the FAQs to the right of this forum.
To convert a video into a DV-AVI with MovieMaker, simply import it into MovieMaker and drag it to the MovieMaker timeline. Then:
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I thought I had a neat way to easily "back up" my audio of an event by using an mp3 recorder on the podium to capture speaker and just recording with on-cam mic at the camcorder, so not to have to mess with wireless mics and jack connections on the camcorder. My thought was that since these are both "digital" recordings of the same event, they would stay in sync. Yet when I put them both in the time line of iMovie, the mp3 sound file does not stay in sync, falling behind. Every sentence or so I have to cut some of the file out to shorten it and bring it back into sync. Any guess why these don't stay in sync?
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Thanks, Dale

I'm assuming that you are using the Sound class to control
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VIDEO RECORD ON N73 WITH NOISE AUDIO.WHEN NOKIA IT...

HI.
THIS IS MY SECOND MESSAGE IN THE WEB.
Please somebody knows when "Nokia sat" fix the problem with the noise audio un video recorded in N73?.the last firmware not fix the problem and the Me version it has he himself error.
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Plase HELP!!!!!!!!!!!!!!!!!!!!!!

a example:listen the video.
http://www.youtube.com/watch?v=D1mBzDw6Nkg
"the error happened in nokia n70 and it was solved but in the N73 NOOOOOOOOOOOOOOOOOOOOO"

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Hello... i'm sorry about my bad english...
I tried many times converting videos for ipod, it allways convert them and than they become without the sound... someone can help me with that?
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Leo

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I have several files (quick time files) in itunes
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quick time files they run with audio in itues but
after converted to ipod the video runs without audio.
How can I convert them without loosing the audio.
And they are not MPEG1 Muxed" or "MPEG2 Muxed
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Why do .mpg videos convert to .m4v with no audio?

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