I have a large video file of about 4GB and simply need to turn it into segments for my presentation. Is there a video cutter that can do this?
There are quite a few tools that can help you split your large video file into several segments and delete the parts that you don't want to keep. For starters, read Jørgen Walters article called "Edit Videos and Don't Go Broke", which tells you about an open source application called VirtualDub.
Alternatively, you can look into Free Video Cutter or DVD Cutter Plus.