I use the command line syntax
exiftool -rotation=90 file.mp4
to rotate a file.
Is there a way I can keep the original time date stamps ( eg. creation date, modified date ) etc., these are important as I use them to sort the time sequence of my video files.
Add the -P (preserve) option (https://exiftool.org/exiftool_pod.html#P--preserve).
Thanks StarGeek. Works like a charm, just have to ensure I used -P not -p ( case-sensitive )....haha. Forgotten all my Unix syntax sensibilities. haha. Back to the good old UNIX days of 30 years ago.
cheers