Hello I am trying to make a vacation video made out of many clips I took with my N900 and add some music in the background. The problem is that windows movie maker does not understand .mp4, so I tried xilisoft converter to make wmv files, that turned out to be terrible idea, because video got torn apart like in damaged files, unwatchable. Is there some way I can edit my videos without converting?
P.S. I am using netbook with N270 atom and 1024x600 res, so no sony vegas sugestions please.

Anybody? PLEASE!

Did you try with VirtualDub?

No, but I will. Thanks.

...mp4 is unsupported file type. Crap

Someone in http://forum.videohelp.com/threads/2...to-sharpen-mp4 claims to have solved it, but i haven't tried it.

Try using VLC to convert the format to something else
http://www.videolan.org/vlc/

The solution above worked like a charm, with no quality loss I am able to edit files on Movie Maker, thank you Laughing_Man for the link.

if you have enough storage you could convert the vids to other format then use virtualdub. Other alternative is to use avisynth which can frameserve the video to a standard avi edit/ converter.

Getting the mp4 vids to play in windows is half the battle. Haali media splitter handles the mp4 container and ffdshow tryouts handles aac and h264.