This is not about this video, but a 2 year old video on making cells square. Off the dozen of so sites I looked at, not one mentioned that the adjustment window showed "pixels" and I never noticed it before. Thank You very much. This solved my issue.
It might help to control the sound of your vids by applying a 'compressor' as it will stop any bits popping out...such as on a reasonably loud set of speakers or headphones (wouldnt let me edit my other reply)
just open main folder, put in right top search box *.* and enter, it will find all files inside, then you can just drag select them them (dont select folders only files) and copy and paste into new location