In 2003 there was celular phones that record videos in the 3GP Format; I downloaded them to my computer; they were played by a software named Platform4Player by Philips. But now they can be played with Windows Media Player (WMP). What I want to do now is: to join/merge or concatenate those 3gp files.
I am using Windows XP.
How can I do such a merge? Someone can help me?