Mine is a little more complicated because my camera saves video files as .mov's so I have to convert them. What file extension does your camera use to save your video files?

I downloaded two free programs, "Bink and Smacker" and Windows Movie Maker. I use Bink and Smacker to convert the file from a .mov to a .avi, then I use Windows Movie Maker to edit the video, put on title/credits, adjust sounds, starting and ending points, etc. Then Windows Movie Maker saves it as a .wmv file, which is what you need to play in Windows Media Player.

I guess it might also depends on what OS you are using?