Can't import .3gp files into windows movie maker...

Cannot
You must convert first the files to windows movie maker is listed as wav format

rwgards

No, Windows Movie Maker can only support a few video converter not include 3gp, and the WMV format can support most, you can try to use Leawo Video Converter to convert your videos to WMV format and then input into Windows Movie Maker to edit.

You really can't import those kind of files because windows doesn't support them. Use a 3rd party software if you are going to use 3gp files, or if you are still planning to use windows movie maker, convert the 3gp file first to AVI, WMV files using a 3rd party software, then import it to windows movie maker.

It is because windows movie maker just doesn't support 3gp, while wmv is well supported by windows movie maker. you can convert 3gp to wmv and then you can view or edit your video as you like. click this URL and you will know how to convert your files step bay step. <a rel='nofollow' href="http://www.aimersoft.com/tutorial/convert-3gp-to-wmv.html">http://www.aimersoft.com/tutorial/convert-3gp-to-wmv.html</a>