I'm not exactly sure if WWM exports your video / "audio" files in .mp3, but I do know that you can download YouTubeDownloader for free which converts audio files to .mp3. Just Google "You Tube Downloader" and you should be able to find the latest version.
Use Windows Movie Maker
To change your Windows Movie Maker audio file name extension (format) to .wma all you need to do is Publish/Finishit.Published video is exported in .wmv format, while audio is mixed-down into .wma format.Simple. Publish/Finish the project audio.
No. Windows Movie Maker records in .wma (Windows Media Audio) format. However, you can import and edit .wav files in the program.
If you are saying your audio/music can't be imported into Windows Movie Maker, then it is an incompatible format for the program. Audio formats compatible with Windows Movie Maker include:aif, .aifc, .aiff, .asf, .au, .mp2, .mp3, .mpa, .snd, .wav, and .wmaCheck the file name extension (format).
You can't do that on Windows Live Movie Maker, but you can extract the audio from a video in Windows Movie Maker v2.6 and save/publish it as an audio file.
You do not have any other audio publishing options other than .wma if you are editing it in Windows Movie Maker. My suggestion is... edit the audio in Windows Movie Maker; publish/finish it in .wma format; then convert it to .mp3 using an Audio Conversion program.
First you need to Publish/Finish the Audio project in Windows Movie Maker. The finished product when exported from the program is .wma. Then you will have to convert the .wma audio into .mp3 format using an audio converter.
You don't need to change the file format of an .mp3 to use in Windows Movie Maker since the program accepts the format. These are the Audio formats Windows Movie Maker can import:.aif, .aifc, .aiff, .asf, .au, .mp2, .mp3, .mpa, .snd, .wav, and .wma
To change your Windows Movie Maker audio file name extension (format) to .wma all you need to do is Publish/Finishit.Published video is exported in .wmv format, while audio is mixed-down into .wma format.Simple. Publish/Finish the project audio.
It means the file name extension (format) is incompatible with Windows Movie Maker, or you are attempting to import a DRM (Digital Rights Management) protected audio piece.
Very easily. Simply Publish/Finish your audio project file in Windows Movie Maker. The process of Publishing/Finishing automatically exports the audio in .wma format.Once it has been publishing/finished in .wma format, you can use an Audio Converter to convert it to an .mp3 or other format if you wish.
You can't export videos from Windows Movie Maker into .mp3 format. You need an Audio Converter to do that.During the Publishing/Finishing process Windows Movie Maker automatically converts audio into .wma files. It does not allow you to choose any other audio format.Google: Free Audio Converters and download one online. Install the converter and follow the instructions for conversion. In your case, you want to make sure the Output Source Formatselected is .mp3.