I saw this query on OStatic and realised that there is a plethora of GPL tools on Windows to edit video (in avi, mp4 etc. formats).
Best of all most of them are also being currently used by professionals too.
Jahshaka which has been around for quite a few years now has matured to a very stable and active version. It supports some really useful features like edit, effects in real time, animate with unlimited features, paint and design on moving video, support for any format at any resolution etc... In case you would like to try your hands on a software with pro like features, Jahshaka would be your first attempt.
Avidemux another interesting front runner in the video editing stage seems to be very simple and user friendly. Cutting, capturing analog video, command line usage, job list support (also batch editing), converting to DVD and DVD to AVI are some of its nifty features. Like other video editors it too uses multi threading to speed up the editing process.
One of the classics that I had come across a few years back was Virtauldub, which has matured over this period to be one of the most powerful video pre and post processing tool. Though not an editor in the true sense it can be used as an excellent companion to the editor.
- Audacity Audio Editor
- Comparison of video editing software
- HandBrake -multiplatform, multithreaded DVD to MPEG-4 converter