anyone have program that can cut part of the video?

zayate

anyone have program that can cut parts of the video?
for example, the video is 20min long. i want to cut only the main part of it.
is there any programs for this???
i know there is movie convert and mp3 cut, but i dont seen any movie cut...
can anyone share with me plzzzz
thank you... it is very important to me....