AviDemux is a video editor and encoder which can edit, encode, requantize MPEG and AVI, including DivX. AviDemux is very easy to use.

It is almost like VirtualDub, but can also encode to VCD/SVCD/DVD mpg.

Avidemux is a free video editor designed for simple cutting, filtering and encoding tasks. It supports many file types, including AVI, DVD compatible MPEG files, MP4 and ASF, using a variety of codecs.