Joining video files in Ubuntu
A quick google turned up the relevant details:
Ensure you have mplayer & mencoder installed
Merge the files together
Reindex the audio and video
All done - if you want to convert it to a DVD check out HOWTO Create DVD's from AVI's on Ubuntu.
Thanks to the good folk at ArsGeek for the tip.




is better and faster
if you are more ten video you can try :
cat video[0-9][0-9].avi > merged.avi
thanks for the Reindex the audio and video tips
Misterniark
mencoder -forceidx -oac copy -ovc copy video01.avi video02.avi video03.avi -o merged_final.avi
should work....