Originally Posted by iskess
I'm using VideoPad based on your recommendation. How can I clip the length of a video without recoding the whole thing?
You can't do it with the free VideoPad or WMM editors. If you convert the file (losslessly) using the free MP4cam2AVI.exe utility, you can trim files via direct copy using VirtualDub, or you can use the Solveig AVItrimmer (the free version of their Video Splitter utility Normandy5 mentioned).
Any editing other than trimming that modifies the video in any way (even cropping) requires re-encoding.