softeware for movie editting

Social Off-topic & Debates
1

which is best software to write text on mpeg,avi format and editting movies and enhancing sound quality…suggest free or open source software.

2

http://www.sharewareconnection.com/easy-video-capture.htm

http://www.mp3towav.org/Fx-ReSound-Movie-Audio-Replacer/

http://www.google.co.in/search?hl=en&client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&q=adding+text+to+mpeg+free&btnG=Search&meta=