Depending upon the number of video files to be processed, you might find it best to perform the task overnight when the system does not have any human users calling upon its capabilities. A cron job, perhaps?
Yes that would be a good idea, I think in the first day there would be about 20 ?.
She has opted to use her own camera and her spare battery, she can turn the sound off on that too, but the uni has now lent her a second video camera but it's the lack of batteries with them for the 4 hours (for 10 days
) of videoing she wants to do .