Virtual Dub

Homepage: http://www.virtualdub.org/

Download link: http://www.virtualdub.org/download.html

Operating Systems: Windows

Portable version here:
 http://portableapps.com/apps/music_video/virtualdub_portable

Jahshaka

Homepage: http://www.jahshaka.com

Download link: http://www.jahshaka.com/download/

Operating Systems: Windows

Description: Video editing software.

Wax

Homepage: http://www.debugmode.com/wax/

Download link: http://www.debugmode.com/wax/download.php

Operating Systems: Windows

Description: Video editing software.

t@b ZS4

Homepage: http://www.zs4.net/downloads

Download link: http://www.zs4.net/downloads

Operating Systems: Windows

Description: Video editing software.

Format Factory

Homepage: http://www.pcfreetime.com/

Download link: http://www.pcfreetime.com/freedownload.php?language=en

Operating Systems: Windows

Description: Video and audio converter. Convert anything to anything.

Handbrake

Homepage: https://handbrake.fr/

Download link: https://handbrake.fr/downloads.php

Operating Systems: Windows

Description: Video and audio ripper and converter. Probably the best