Help video deletion during file move. help!?

[lexi123]

This is my first post here. The last few days I've tried to move a couple important videos from the sd card in my Galaxy S4 to an interal file folder on the phone. The action seems to process through, but when I go to find the video I've moved it's not there! I can't find them. Can someone please explain to me why this is happening, how to keep it from happening, and how to find the videos that were moved!? Thanks in advanced, Lexi.