Machete

Machete is a quick and lean video editor. It provides functionality of video splitter, joiner and more. Machete can edit AVI, ASF, WMV, WMA, MP3 and FLV files (most video and audio codecs are supported). All editing operations are performed without re-encoding (lossless editing). This not only saves time, but also prevents loss of video and audio quality. After a file is edited and saved, it retains its original format.