keis video galaxy note 1

[pedwarpimp]

Im trying to delete some videos from my galaxy note as the memory is full, however when I click on the keis phone video folder and click delete it states " this will also delete the videos on the phone / device" . So I can't understand or be sure what or where these other videos are that it will delete , I've backed up the videos on the PC , how can I be sure its not going to delete these?

ta