HI I HAVE A PROBLEM WITH MY 3GP VIDEOS FROM MY MOBILE PHONE. WHEN I TRY TO WATCH ONE IN MY PC, USING MEDIA PLAYER CLASSIC OR QUICKTIME THE VIDEO IS ROTATED 90 DEGREES TO THE LEFT. IS THERE ANY PROGRAM TO ROTATE THE VIDEO TO THE NORMAL SIDE???????????
You can do it in MPC. Probably also QuickTime or you mean you want to make it permanent? To do that you would need to re-encode.
Alt+3 on the numpad till z=90degrees. You would need to have a compatible output though. For instance it wouldn't work with overlay. Also you will probably be missing the top and bottom unless you zoom out or goto fullscreen. For re-encoding I would probably frameserve with AVISynth to rotate. For the actual encoding, that depends on the desired output format.