Here’s a great tip for re-combining video files, if a website has split it into smaller parts to make it easier for people with slow internet connections to download them. It’s so simple, it’s beautiful.
The method is different depending on the type of movie that you are playing. If the movie consists of multiple mpg movies you can use the windows command line to merge them.
Start the command line by pressing the windows key and R. Enter cmd in the prompt which will start the command line window. Enter the following line into the command line, make sure you enter the right filepath to the movie. I suggest you move the files to the top of a hard drive to ease the amount of typing that needs to be done.
copy /B “C:\movie1.mpg” + “C:\movie2.mpg” + “C:\movie3.mpg” “C:\completemovie.mpg”
This joins movie1.mpg, movie2.mpg and movie3.mpg into completemovie.mpg. You can add more movies to join more parts without problems.
Combining avi files is a bit more complicated. If you want to learn how to do this then visit gHacks