linux How to join more video files into one in linux by smeal • July 25, 2008 mencoder -forceidx -ovc copy -oac copy -o output.avi part1.avi part2.avi part3.avi ….
of course you can use the easiest way if there is no AAC (or similar) stuff
cat file1.avi file2.avi file3.avi > final.avi
or just:
cat file*avi > final.avi