Borderline
it will cost you. need to feed it in to your harddrive and work on with one of several software packages. too expensive for my blood. check at adobe. they are the best but not the cheapest. i have never done it. just read about it. cannot do it without software. would be a big project to correct one small segment. i just cannot understand why you recorded on its dang side?????????

qrk
VirtualDub can do this along with lots of other video effects. The program is free. It's not the most intuitive program, but it is very capable once you figure out how it works. It also has a wonderful scrubber (allows you to manually preview your video) and single step features. Avisynth is another program that will do rotations, but it is script based and even unfriendlier if you aren't used to scripting. VirtualDub relies on codecs installed on your machine. You will most likely need an MJPEG codec which might have been installed with your camera software. If not, there are free MJPEG codecs you can install.

antoni
yes you can use an editing package like Avid or Avid pro Really this is the important part----------film as you intend the output,,,,,,,,,,i have done some TV camera operating and have never myself or seen other operators operating with the camera sideways??! a