Same story... I've recently bought a Canon HF100. Fantastic camcorder BUT the default software is the most paintful and unfriendly way for editing video files... and doesn't even support MAC. I'm glad I've found couple of answers on this forum to ...
I know a video converter can convert m2ts file to normal video files such as mp4, wmv and you can edit the wmv with windows movie maker then.
http://www.aimersoft.com/video-converter.html#114
Hope it helps
My newsroom recently purchased a Canon Vixia HF10...I wish I knew about the difficulty with editing the video files before I bought it. So the Pixela ImageMixer 3SE software the camera comes with saves the files as .i3e or .m2ts. Ok, but now what?...