How many times have you recorded with your videocamera without realizing you´re in the wrong place? Sometimes you end up with a video in vertical when it would be better horizontal. The solution is, unless you want to end up with a stiff neck from twisting it, put it through this program: Free Video Flip and Rotate.
Free Video Flip and Rotate lets you rotate or flip any video with one mouse click. It is as simple as choosing the video you want to rotate, indicate the rotation angle (90º, 180º, etc) and click on the "Rotate" option. It won´t take more than a few seconds.