How to join multiple .avi or .mpg files
This will most likely work on just about any linux distro that includes the ability to install mplayer/mencoder. First, let’s get the right programs.
sudo apt-get install mencoder mplayer
Now that the hard part is out of the way, we’re going to make use of the wonderful cat command. I’d renamed each Bloodspell video as b1.avi – b7.avi. Now to string them all end to end.
cat b1.avi b2.avi b3.avi b4.avi b5.avi b6.avi b7.avi > bloodspell.avi
Now we’re 2/3 of the way there! Stringing together .avi files can cause a breakdown in the sync between video and sound. So, we’ll use mencoder to sort things out.
mencoder -forceidx -oac copy -ovc copy bloodspell.avi.avi -o bloodspell_final.avi