I have a camera that records video. We thought it would auto-sense that it was sideways, but if it had... I wouldn't be here.
Windows comes with Movie Maker, that does this... but it saves the file as a Movie Maker Format that isn't compatible with anything else and is a bit more involved than I'd like it to be (needs to be done for many videos, so simple is needed).
What are some good options to rotate a video 90 degrees on Windows?
Edit: I've found this that is simple and works. Mov in, mov out... it does seem to down-convert the files though (files are about 1/3rd the size, although the differences aren't real noticeable by me). I'd almost want a few more options, like the ability to control the changes in the output file. Maybe choose a different format (MOV to WMV or what have you).